X

Available for CBSE, ICSE and State Board syllabus.

Call our LearnNext Expert on 1800 419 1234 (tollfree)

OR submit details below for a call back

Bhoothnath

Jun 24, 2014

Value of sin 2π?

This answer has an image. Please click on the question to read more.

Misha Jain

Apr 22, 2014

An amount of Rs 5000 is put into three investments at the rate of interest of 6%, 7% and 8% per annum. The total annual income is Rs. 358. If the combined income from the first two investments is Rs. 70 more than the income from third, find the amount of each investment by matrix method.

This answer has an image. Please click on the question to read more.

Asif

Jun 12, 2014

Example 15: If x,y,z are different and Δ= | x x^{2} 1+x^{3 }| = 0 , then show that 1+xyz=0.

| y y^{2} 1+y^{3} |

| z z^{2} 1+z^{3} |

Please help me solve this question and I didn't understand what does it mean "x,y,z are different" ??

Thanks.

| y y

| z z

Please help me solve this question and I didn't understand what does it mean "x,y,z are different" ??

Thanks.

This answer has an image. Please click on the question to read more.

Misha Jain

Apr 23, 2014

Prove, using properties of determinant -

Answer.

=a^2(aÃ a^4-2ab^3)-2ab(a^3b^3-4a^2+b^2(b^4-2ba^3) =a^6-2a^3b^3+2ab(3a^2b^2)+b^6-2a^3b^3 =a^6+b^6+6a^3b^3-2a^3b^3-2a^3b^3 =a^6+b^6+2a^3b^3 =(a^3+b^3)^2...

=a^2(aÃ a^4-2ab^3)-2ab(a^3b^3-4a^2+b^2(b^4-2ba^3) =a^6-2a^3b^3+2ab(3a^2b^2)+b^6-2a^3b^3 =a^6+b^6+6a^3b^3-2a^3b^3-2a^3b^3 =a^6+b^6+2a^3b^3 =(a^3+b^3)^2...

Misha Jain

Apr 22, 2014

x + y + z = 6

x + 2z = 7

3x + y + z = 12

x + 2z = 7

3x + y + z = 12

This answer has an image. Please click on the question to read more.

Asif

Oct 9, 2014

What is the meaning of 'post multiplying'?

The product of matrices A and B, AB and BA are not the same. It is common to use the terms “pre-multiplication” and “post-multiplication” in the multiplication of matrices. “A is p...

Misha Jain

Apr 22, 2014

A company produces three products everyday. Their production on a certain day is 45 tons. It is found that the production of third product exceeds the production of first product by 8 tons while the total production of first and third product twice the production of second product. Determine the production level of each product using matrix method.

This answer has an image. Please click on the question to read more.

Mohammed Irfan

Aug 25, 2015

please list basic differences between determinants and matrices. Mohammed Irfan

Misha Jain

Apr 23, 2014

Solve system of equation

This answer has an image. Please click on the question to read more.

Misha Jain

Apr 22, 2014

2/x - 3/y + 3/z = 10

1/x + 1/y + 2/z = 10

3/x - 1/y + 2/z =13

1/x + 1/y + 2/z = 10

3/x - 1/y + 2/z =13

This answer has an image. Please click on the question to read more.

Bhoothnath

Jun 24, 2014

Value of sin 2π?

This answer has an image. Please click on the question to read more.

Misha Jain

Apr 22, 2014

An amount of Rs 5000 is put into three investments at the rate of interest of 6%, 7% and 8% per annum. The total annual income is Rs. 358. If the combined income from the first two investments is Rs. 70 more than the income from third, find the amount of each investment by matrix method.

This answer has an image. Please click on the question to read more.

Asif

Jun 12, 2014

Example 15: If x,y,z are different and Δ= | x x^{2} 1+x^{3 }| = 0 , then show that 1+xyz=0.

| y y^{2} 1+y^{3} |

| z z^{2} 1+z^{3} |

Please help me solve this question and I didn't understand what does it mean "x,y,z are different" ??

Thanks.

| y y

| z z

Please help me solve this question and I didn't understand what does it mean "x,y,z are different" ??

Thanks.

This answer has an image. Please click on the question to read more.

Misha Jain

Apr 23, 2014

Prove, using properties of determinant -

Answer.

=a^2(aÃ a^4-2ab^3)-2ab(a^3b^3-4a^2+b^2(b^4-2ba^3) =a^6-2a^3b^3+2ab(3a^2b^2)+b^6-2a^3b^3 =a^6+b^6+6a^3b^3-2a^3b^3-2a^3b^3 =a^6+b^6+2a^3b^3 =(a^3+b^3)^2...

=a^2(aÃ a^4-2ab^3)-2ab(a^3b^3-4a^2+b^2(b^4-2ba^3) =a^6-2a^3b^3+2ab(3a^2b^2)+b^6-2a^3b^3 =a^6+b^6+6a^3b^3-2a^3b^3-2a^3b^3 =a^6+b^6+2a^3b^3 =(a^3+b^3)^2...

Misha Jain

Apr 22, 2014

x + y + z = 6

x + 2z = 7

3x + y + z = 12

x + 2z = 7

3x + y + z = 12

This answer has an image. Please click on the question to read more.

Asif

Oct 9, 2014

What is the meaning of 'post multiplying'?

The product of matrices A and B, AB and BA are not the same. It is common to use the terms “pre-multiplication” and “post-multiplication” in the multiplication of matrices. “A is p...

Misha Jain

Apr 22, 2014

A company produces three products everyday. Their production on a certain day is 45 tons. It is found that the production of third product exceeds the production of first product by 8 tons while the total production of first and third product twice the production of second product. Determine the production level of each product using matrix method.

This answer has an image. Please click on the question to read more.

Mohammed Irfan

Aug 25, 2015

please list basic differences between determinants and matrices. Mohammed Irfan

Misha Jain

Apr 23, 2014

Solve system of equation

This answer has an image. Please click on the question to read more.

Misha Jain

Apr 22, 2014

2/x - 3/y + 3/z = 10

1/x + 1/y + 2/z = 10

3/x - 1/y + 2/z =13

1/x + 1/y + 2/z = 10

3/x - 1/y + 2/z =13

This answer has an image. Please click on the question to read more.