Math, asked by kajalshah, 1 year ago

Evaluate: cos(40+theta)-sin(50-theta)

Answers

Answered by garvit133

7

sin(90-(40+theta))=cos(40+theta)
cos(40+theta)-cos(40+theta)=0

Answered by satyam9211

6

cost 40 + theta= sin 60
sin 50+theta=cos 30
sin60-cos30
3/2-3/2=0

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