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FULL MARKS-TRIGONOMETRY-Exercise 3.12
- Write the general form of costheta
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- (1)/(cos 80^(@)) - (sqrt(3))/(sin 80^(@)) =
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- If cos 28^(@) + sin 28^(@) = k^(3), then cos 17^(@) is equal to
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- The maximum value of 4 sin^(2) x + 3 cos^(2) x + sin ""(x)/(2) + cos""...
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- (1 + cos"" (pi)/(8))(1 + cos"" (3pi)/(8)) (1 + cos"" (5pi)/(8))(1 + co...
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- If pi lt 2 theta lt (3pi)/(2), then sqrt(2 + sqrt( 2 + 2 cos 4 theta))...
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- If tan 40^(@) = lambda, then (tan 140^(@) - tan 130^(@))/(1 + tan 140^...
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- cos 1^(@) + cos 2^(@) + cos 3^(@) + ….+ cos 179^(@) =
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- Letf(4)(x) = (1)/(k) [ sin^(k) + cos^(k) x ] where x in RR and k ge1. ...
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- Which of the following is not true?
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- cos 2theta cos 2phi + sin^(2) (theta - phi ) - sin^(2) ( theta + phi) ...
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- (sin(A - B))/(cos A cos B) + (sin (B - C))/( cos B cos C) + (sin(C - A...
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- If cos ptheta + cos qtheta = 0 and if p ne q, then theta is equal to (...
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- If tan alpha and tan beta are the roots of x^(2) + ax + b = 0, then (s...
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- In a triangle ABC, sin^(2)A + sin^(2)B + sin^(2)C = 2, then the triang...
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- If f(theta) = |sin theta| + |cos theta|,theta in RR, then f(theta) is ...
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- (cos 6x + 6 cos 4x + 15 cos 2x + 10)/(cos 5x + 5 cos 3x + 10 cos x ) i...
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- The triangle of maximum area with constant perimeter 12m
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- A wheel is spinning at 2 radians/second. How many seconds will it take...
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- If sin alpha + cos alpha = b, then sin 2alpha is equal to
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- In a DeltaABC, if (i)sin (A)/(2) sin"" (B)/(2) sin"" (C )/(2) gt 0 (...
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