Q5 of 90 Page 7

Mark the correct alternative in the following:

If 3 sin x + 4 cos x = 5, then 4 sin x – 3 cos x =


3sin(x)+4cos(x)=5


cos(37°-x)=cos 0° (∵ x=37°)


4sin(x)-3cos(x)=k


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tan 20o + tan 40o + √3 tan 20o tan 40o is equal to


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If and then the value of A + B is


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Mark the correct alternative in the following:

If in a ∆ABC, tan A + tan B + tan C = 6, then cot A cot B cot C =


 7

Mark the correct alternative in the following:

tan 3A – tan 2A – tan A is equal to