Math, asked by samirahamad, 9 months ago

challenge for math toppers

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Answers

Answered by aryancampionc

2

Step-by-step explanation:

the answer is 18 degrees

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Answered by lakshyapro

3

Answer:

alpha=18

Step-by-step explanation:

sin alpha=cos 4 alpha

sin alpha=sin(90-4 alpha).{sin theta=cos(90-theta)}

alpha=90-4 alpha. (sin cancelled)

5 alpha=90

alpha=18

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