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Nov 20, 2014

Vertices of a triangle are given by i^+3j^+2k^ , 2i^-j^+k^ and -i^+2j^+3k^ then area of triangle is

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

Rajesh

Oct 5, 2013

State and prove de-moivre's theorem,

(cosÎ¸ + i sinÎ¸)

We have to prove this theorem u...

Jahnavi

Jun 18, 2014

what is the property of two vectors A and B such as A+B =C and a^{2 }+ b^{2 }= c^{2} , (a) A pararlel to B, (b) B =0 (c) A perpendicular to B (d) A =0

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

Anubhav Singh

Dec 29, 2014

if a^{â†’ } and b^{â†’ }are non -collinear vectors ,find the value of x for which the vectors l = (2x +1)a - b and m = (x-2)a +b are collinear?

Sol:

If l, m are collinear vectors then l = Î» m

â‡’ (2x +1)a - b = Î»[ (x-2)a + b]

If l, m are collinear vectors then l = Î» m

â‡’ (2x +1)a - b = Î»[ (x-2)a + b]

Shakti Gayatri

Jan 26, 2015

What is scalar triple product.

Sol:

The scalar triple product is defined as the dot product of one of the vectors with the cross product of the other two.

Ex: ( a x b ).c

The scalar triple product is defined as the dot product of one of the vectors with the cross product of the other two.

Ex: ( a x b ).c

Aishwarya Joy

Mar 11, 2017

The projection of the vector 2i^ +3j^ +2k^ on the vector i^ + j^+k^ is?

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

Harsh Aryan

May 26, 2015

prove that the vectors 2i-j+k, I-3j-5k and 3i-4j-4k from a right angled triangle

No answers yet.Be the first to answer

Vinay

Mar 10, 2015

What is a vector?

vector is a quantity with magnitude and direction

Chokeh

Sep 11, 2014

find the sum of each of the following series

A. 5+17+29+41+....to 20terms

B. 20+18+16+14+....to 12 terms

c.1-3-7-11...to n terms

A. 5+17+29+41+....to 20terms

B. 20+18+16+14+....to 12 terms

c.1-3-7-11...to n terms

Sol:

a)

Given that 5 + 17 + 29 + 41 +.......to 20 terms

d = 17 - 5 = 29 - 17 = .........= 12

So that It is in A.P.

Her a = 5 and n = 20.

...

a)

Given that 5 + 17 + 29 + 41 +.......to 20 terms

d = 17 - 5 = 29 - 17 = .........= 12

So that It is in A.P.

Her a = 5 and n = 20.

...

Sukirtha

Nov 20, 2014

Vertices of a triangle are given by i^+3j^+2k^ , 2i^-j^+k^ and -i^+2j^+3k^ then area of triangle is

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

Rajesh

Oct 5, 2013

State and prove de-moivre's theorem,

(cosÎ¸ + i sinÎ¸)

We have to prove this theorem u...

Jahnavi

Jun 18, 2014

what is the property of two vectors A and B such as A+B =C and a^{2 }+ b^{2 }= c^{2} , (a) A pararlel to B, (b) B =0 (c) A perpendicular to B (d) A =0

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

Anubhav Singh

Dec 29, 2014

if a^{â†’ } and b^{â†’ }are non -collinear vectors ,find the value of x for which the vectors l = (2x +1)a - b and m = (x-2)a +b are collinear?

Sol:

If l, m are collinear vectors then l = Î» m

â‡’ (2x +1)a - b = Î»[ (x-2)a + b]

If l, m are collinear vectors then l = Î» m

â‡’ (2x +1)a - b = Î»[ (x-2)a + b]

Shakti Gayatri

Jan 26, 2015

What is scalar triple product.

Sol:

The scalar triple product is defined as the dot product of one of the vectors with the cross product of the other two.

Ex: ( a x b ).c

The scalar triple product is defined as the dot product of one of the vectors with the cross product of the other two.

Ex: ( a x b ).c

Aishwarya Joy

Mar 11, 2017

The projection of the vector 2i^ +3j^ +2k^ on the vector i^ + j^+k^ is?

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

Harsh Aryan

May 26, 2015

prove that the vectors 2i-j+k, I-3j-5k and 3i-4j-4k from a right angled triangle

No answers yet.Be the first to answer

Vinay

Mar 10, 2015

What is a vector?

vector is a quantity with magnitude and direction

Chokeh

Sep 11, 2014

find the sum of each of the following series

A. 5+17+29+41+....to 20terms

B. 20+18+16+14+....to 12 terms

c.1-3-7-11...to n terms

A. 5+17+29+41+....to 20terms

B. 20+18+16+14+....to 12 terms

c.1-3-7-11...to n terms

Sol:

a)

Given that 5 + 17 + 29 + 41 +.......to 20 terms

d = 17 - 5 = 29 - 17 = .........= 12

So that It is in A.P.

Her a = 5 and n = 20.

...

a)

Given that 5 + 17 + 29 + 41 +.......to 20 terms

d = 17 - 5 = 29 - 17 = .........= 12

So that It is in A.P.

Her a = 5 and n = 20.

...