Asked by Trevor N.
Find the exact values of x in the interval [0, 4π] that satisfy the equation sin x = -√2 / 2 (refer to y = sin x or y = cos x )
Answers
Answered by
oobleck
you know that sin π/4 = √2/2
sin(x) is negative in QIII and QIV
the rest should be easy.
sin(x) is negative in QIII and QIV
the rest should be easy.
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