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VK GLOBAL PUBLICATION-INTRODUCTION TO TRIGONOMETRY-SHORT ANSWER QUESTIONS-I
- Evaluate cos 48^(@) cos 42^(@) - sin48^(@) sin 42^(@)
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- Find the value of : 3 sin^(2) 20^(@) - 2 tan^(2) 45^(@) + 3 sin^(2) 70...
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- If sin^(2)A = 2 sin A then find the value of A.
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- Find maximum value of (1)/(sec theta), 0^(@) le theta le 90^(@) .
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- Given that sin theta = (a)/(b), find the value of tan theta.
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- If sin theta = cos theta , then find the value of 2 tan theta + cos^(2...
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- If sin(x - 20)^(@) = cos (3x - 10)^(@), then find the value of x.
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- If sin^(2) A = (1)/(2) tan^(2) 45^(@), where A is an acute anlge, then...
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- If x = a cos theta,y = b sin theta, then find the value of b^(2) x^(2)...
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- If tan A = cot B , prove that A + B = 90^(@) .
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- if secA=2x and tanA=2/x,find the value of 2(x^2−1/x^2)
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- In a Delta ABC, if angle C = 90^(@) , prove that sin^(2) A + sin^(2) ...
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- If sec 4A = cosec (A - 20^(@)), where 4A is an acute angle, find the v...
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