Question #29edb

1 Answer
Candy
Jan 23, 2018

Here you go....

Explanation:

#sinx*cosx=-1/4#
Multiplying with 2 on both sides, we have:
#2*sinx*cosx=2*-1/4#
or, #2*sinx*cosx=-1/2#
or, #sin2x=-1/2#
Thus, we can say:
#2x=(7pi)/2 or 2x=(11pi)/2#
So, we have:
#x=(7pi)/2 or x=(11pi)/2# as your answer.

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