Math, asked by Prateek94111, 9 months ago

Sin square 18 + sin square 72+ sin square 108+sin square 162

Answers

Answered by azizalasha

3

Answer:

2

Step-by-step explanation:

Sin square 18 + sin square 72+ sin square 108+sin square 162

= sin² 18 + sin² 72 + sin² 108 + sin² 162

= sin² 18 + sin² 72 + sin² 72 + sin² 18

= 2 ( sin² 18 + sin² 72 )

= 2 ( sin² 18 + cos² 72 )

= 2

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