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A DAS GUPTA-Circular Functions, Identities -Exercise
- tan 40^@ + 2tan 10^@ is equal to
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- If cos(alpha + gamma)/cos(alpha - gamma) = cos 2beta then tan alpha, t...
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- The value of sqrt3 cosec 20^circ - sec 20^circ is equal to
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- The number of real values of x for which sin(e^x) = 5^(x)+5^(-x) is
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- If cot y= (sin x- sin z)/(cos z- cos x) then which of the following ...
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- What is the real part of ( sin x + icos x )^(3), where i= sqrt( -1) ?
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- If alpha, beta be the solutions of theta for the equation a tan theta...
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- The value of cos^(2)x + cos^(2) (pi/3 + x) - cos x *cos(pi/3+ x) is
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- The equation (cos p-1) x^(2) + cos p*x + sin p = 0 where x is a varia...
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- If tan theta + tan (pi/3 +theta) + tan (frac{2pi}{3}+ theta) = k tan 3...
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- The value of sin sqrt(x^(2) - pi^(2)/36) lies in the interval
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- If alpha, beta are two values lying between 0 and 2pi for which tan t...
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- (2+sin 2x)/(1+cos 2x) e^(x)
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- sin theta = x + 1/x is possible for some real values of x.
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- Is (sec x + tan x + 1)(sec x - tan x - 1) - 2tan x = 0 an identity.
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- If a1 +a2cos 2x + a3sin^(2)x = 0 be true for all x then a1, a2 and a3...
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- The maximum value of 5cos theta + 12 sin theta is 17. Given statement ...
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- If cos x + cos y- cos(x +y) = 3/2 then x=y is possible.
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- If x = rsin theta*cos phi, y = rsin theta*sin phi and z = rcos theta ...
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- The minimum value of 3cos x + 4sin x + 5 is 0. Given statement is true...
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