Math, asked by Anonymous, 7 months ago

(iv) sin 5° - cos 25º = cos 35º.

Answers

Answered by nikhilmishra5577

2

Answer:

sin5°

Step-by-step explanation:

step1. =cos25°-cos35°

= -2 sin(25-35)/2 sin(25-35)/2

= -2 sin 30 sin(-5)

= -2(1/2) - sin 5

= sin5° (Answer)

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