Math, asked by evelin3529, 7 months ago

If sin (x-20)⁰=cos(3x-10)⁰. Then x is

Answers

Answered by baldevkhatkarmajra

3

Answer:

x = 30°

Step-by-step explanation:

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

cos (90 - x + 20° ) = cos (3x - 10°)

= 110° - x = 3x - 10°

110° + 10° = 3x + x

120° = 4x

120°/4 = x

30° = x

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