hloo guys
plzzz explain this properly
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3
sin(90+x)=-sinx because of the second quadrant is sinx minus.see
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Sunil07:
first question in x is π\6 and second( π\2 +π\3)
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Hey Mate
your answer is here
given that
cos is +ve & sin is -ve
so,
this angle should be in 4th quardant
so,
theta = 2 pi - pi/4 = 7pi/4
your answer is here
given that
cos is +ve & sin is -ve
so,
this angle should be in 4th quardant
so,
theta = 2 pi - pi/4 = 7pi/4
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