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SSC CGL Tier 1 :: QA Test 74
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1 .
The value of sin 720� - cot 270� - sin 150� cos 120� is equal to
[ A ]    $3 \over 4$
[ B ]    $2 \over 3$
[ C ]    $2 \over 5$
[ D ]    $1 \over 4$ right
Answer : Option D
Explanation :
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