Math, asked by ahmedmubashir896, 10 months ago

12)prove that sin43cos47 + sin47 cos43 =1
2

Answers

Answered by sudershanswain120995

2

Answer:

sin (A+B)= sin A cos B + cos A Sin B

Here a-43, and b= 47

so, sin( 43+47)

= sin 90

=1.

Step-by-step explanation:

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