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Alex_Xolod [135]
4 years ago
14

Write cos 10 in terms of sine a. sin 10 b. sin 20 c. sin 170 d. sin 80

Mathematics
1 answer:
labwork [276]4 years ago
4 0

Answer:

d. sin 80.

Step-by-step explanation:

Use the identity cos x = sin (90-x).

So cos 10 = sin(90 - 10)

= sin 80.

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