Math, asked by sushantmalaganvi771, 2 months ago


if a = ( cosa  sina)and b = ( sina. -  cos a) then ab

Answers

Answered by Draviddesh
0

Step-by-step explanation:

a= (cosAsinA) & b=(sinA-cosA)

a= (cosAsinA) & b=(sinA-cosA)then ab = cosAsin²A-cos²AsinA

sin²A-cos²A=1

therefore : cosA x 1 x sinA

= cosAsinA

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