Learn All Concepts of Chapter 3 Class 12 Matrices - FREE. Check - Matrices Class 12 - Full video

Last updated at May 29, 2018 by Teachoo
Transcript
Ex 3.2, 2 Compute the following: (i) [ 8(a&b@ b&a)] + [ 8(a&b@b&a)] [ 8( a&b@ b&a)] + [ 8(a&b@b&a)] = [ 8(a+a&b+b@b+b&a+a)] = [ 8(2a&2b@0&2a)] Ex 3.2,2 Compute the following: (ii) [ 8(a2+b2&b2+c2@a2+c2&a2+b2)] + [ 8(2ab&2bc@ 2ac& 2ab)] [ 8(a2+b2&b2+c2@a2+c2&a2+b2)] + [ 8(2ab&2bc@ 2ac& 2ab)] = [ 8(a2+b2+2ab&b2+c2+2bc@a2+c2 2ac&a2+b2 2ab)] = [ 8((a+b)2&(b+c)2@(a c)2&(a b)2)] Ex 3.2, 2 Compute the following: (iii) [ 8( 1&4& 6@8&5&16@2&8&5)] + [ 8(12&7&6@8&0&5@3&2&4)] [ 8( 1&4& 6@8&5&16@2&8&5)] + [ 8(12&7&6@8&0&5@3&2&4)] = [ 8( 1+12&4+7& 6+6@8+8&5+0&16+5@2+3&8+2&5+4)] = [ 8(11&11&0@16&5&21@5&10&9)] Ex 3.2, 2 Compute the following: (iv) [ 8(cos2 x&sin2 x@sin2 x&cos2 x)] + [ 8(sin2 x&cos2 x@cos2 x&sin2 x)] [ 8(cos2 x&sin2 x@sin2 x&cos2 x)] + [ 8(sin2 x&cos2 x@cos2 x&sin2 x)] = [ 8(cos2 x+sin2 x&sin2 x+cos2 x@sin2 x+cos2 x&cos2 x+sin2 x)] = [ 8(1&1@1&1)]
Ex 3.2
Ex 3.2, 2 You are here
Ex 3.2, 3
Ex 3.2, 4
Ex 3.2, 5
Ex 3.2, 6
Ex 3.2, 7 Important
Ex 3.2, 8
Ex 3.2, 9
Ex 3.2, 10
Ex 3.2, 11
Ex 3.2, 12 Important
Ex 3.2, 13 Important
Ex 3.2, 14
Ex 3.2, 15
Ex 3.2, 16 Important
Ex 3.2, 17 Important
Ex 3.2, 18 Important
Ex 3.2, 19 Important
Ex 3.2, 20 Important
Ex 3.2, 21 Important
Ex 3.2, 22 Important
About the Author