Question

if sin[x-20]=cos[3x-10]then x value is

Answer 1

This must be the answer.

Answer 2

Answer:

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Step-by-step explanation:

sin[x-20]=cos[3x-10]

we know that cos[90-θ]=sin θ

cos[90-(x-20)]=cos[3x-10]

90-[x-20]=3x-10

90-x+20=3x-10

110-x=3x-10

120=4x

x=30

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