Math, asked by varnikasingh805, 11 months ago

If 2 cos x = 2/5, find sin x without using tables.

Answers

Answered by Payelpati2003

1

Answer:

(2√6)/5

Step-by-step explanation:

cos x = 1/5

cos²x = 1/25

sin²x = (1-cos²x) = (1 - 1/25) = 24/25

sin x = √24 / 5 = 2√6 /5

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