Given sin(theta)=4/5 find the cos

LGTrader asked Sep 23, 2023

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37 votes

Given sin(theta)=4/5

find the cos

LGTrader asked Sep 23, 2023

2.7k points

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22 votes

Answer:

cosx=

3/5

Use Trignometrical identity cosx =
√1−sin2x

cos x =

√1−16/25 =√9/25 = 3/5

to be the value in the first quadranr.

Explanation:

Dsmudger answered Sep 27, 2023

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