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Given tan() = 4/3 and sin() -4/5, find cos()

Given Tan 43 And Sin 45 Find Cos class=

Answer :

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Answer:

Make a triangle with an opposite side of 4 and adjacent side of 3 (hypotenuse is 5).  You can now work out all trig functions for that angle. including sin(x)

Use the double angle formula to find sin(2x)

Step-by-step explanation:

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