Cos (2x-40)°-sin(x-20)°=0
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Ans :cos(2x-40) - cos [90-(x - 20)]
=cos(2x-40) - cos(110-x)
By solving,
3x = 150
Value of x = 50
=cos(2x-40) - cos(110-x)
By solving,
3x = 150
Value of x = 50
odhashley:
Can you please show me the working
Got it ?
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