Trigonometry Practice Test 1

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Question : 31 of 40

Marks: +1, -0

If

\sin x \cos x = 1/2

, then what is the value of

\sin x - \cos x

?

2
1
0
-1
None of these

Solution:

Now,

(\sin x-\cos x)^2

=(\sin ^2x+\cos^2x)-2\sin x\cos x

=1-2(1/2)=0

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