Math, asked by paulsayan259, 9 months ago

secAsinB=1 than,cos(A+B)=?

Answers

Answered by shahtamu111

1

Step-by-step explanation:

we know

secAsinB=1

we have to prove that cos(A+B)=?

cos(A+B)=cosAcosB-sinAsinB

i am so srry mate i am confused in this qn

really sorry

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