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Alex777 [14]
3 years ago
6

2. Why does the sin Ɵ = cos (90 – Ɵ)? Show steps

Mathematics
1 answer:
Troyanec [42]3 years ago
8 0

Answer:

R.H.S:

= cos ( 90 - theta )

= cos (90) cos(theta) + sin(90) sin(theta)

= 0 + sin(theta)                                                       =>[ cos(90) = 0   ,  sin(90) = 1]

= sin(theta)

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