Math, asked by nch58809, 18 days ago

(u) sin 25° cos 65° + Cossaro Sin 650 plz tell me the ans

Answers

Answered by manikandanmanik07

1

Answer:

sin 25° cos (90° – 25°) + cos 25° sin (90° – 65°)

= sin 25° sin 25° + cos 25° cos 25°

= sin2 25° + cos2 25°

= 1 [By trigonometry identity: sin2 x + cos2 x = 1]

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