![Ex 3.2, 6 - Simplify cos [ cos sin -sin cos] - Class 12 Matrices - Addition/ subtraction of matrices](https://d1avenlh0i1xmr.cloudfront.net/59d3992b-3797-47f4-a344-47511a94f710/slide21.jpg)
Ex 3.2, 6 - Chapter 3 Class 12 Matrices (Term 1)
Last updated at May 29, 2018 by Teachoo
Ex 3.2
Ex 3.2, 1
Ex 3.2, 2 (i)
Ex 3.2, 2 (ii) Important
Ex 3.2, 2 (iii)
Ex 3.2, 2 (iv)
Ex 3.2, 3 (i)
Ex 3.2, 3 (ii) Important
Ex 3.2, 3 (iii)
Ex 3.2, 3 (iv) Important
Ex 3.2, 3 (v)
Ex 3.2, 3 (vi) Important
Ex 3.2, 4
Ex 3.2, 5
Ex 3.2, 6 You are here
Ex 3.2, 7 (i)
Ex 3.2, 7 (ii) 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
Ex 3.2, 19 Important
Ex 3.2, 20 Important
Ex 3.2, 21 (MCQ) Important
Ex 3.2, 22 (MCQ) Important
Chapter 3 Class 12 Matrices (Term 1)
Serial order wise
Transcript
Ex 3.2, 6 Simplify cos [ 8(cos &sin @ sin &cos )] + sin [ 8(sin & cos @cos &sin )] cos [ 8(cos &sin @ sin &cos )] + sin [ 8(sin & cos @cos &sin )] = [ 8("cos " ("cos " )&cos (sin )@cos ( )&cos (cos ))] + [ 8(sin (sin )&sin ( "cos " ) @sin ("cos " )&sin (sin ))] = [ 8(cos2 &cos sin @ cos sin &cos2 )] + [ 8(sin2 & cos sin @sin cos &sin2 )] = [ 8(cos2 +sin2 &sin cos cos sin @ cos sin +sin cos &cos2 +sin2 )] = [ 8(cos2 +sin2 &0@0&cos2 +sin2 )] = [ 8(1&0@0&1)]
