Math, asked by yashodapoojary220, 5 months ago

Find the value of cos (-1410)

Answers

Answered by abhay2762

2

Answer:

cos -theta = - cos theta

Step-by-step explanation:

cos -1410 = -cos 1410

= - cos (4 * 360 - 30)

= - cos (-30)

= + cos 30 = root 3 / 2

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