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A DAS GUPTA-Circular Functions, Identities -Exercise
- 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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- tan 22 1^circ/2 is a root of the equation - (1+x^(2))/(1- x^(2)) = sq...
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- If tan theta= 2 is satisfied by alpha, beta then the value of frac{tan...
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- Prove that sin 1^circ lt sin 1.
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- If sin alpha = -3/5,pi lt alpha lt 3pi/2 then cos alpha/2 = 1/sqrt10
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- In the following incomplete sentences fill in the blanks such that the...
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- If sin 17^circ *sin 43^circ *sin 77^circ = lambda sin 51^circ then lam...
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- In the following incomplete sentences fill in the blanks such that the...
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- In the following incomplete sentences fill in the blanks such that the...
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- In the following incomplete sentences fill in the blanks such that the...
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- If un = 2cos n theta then u1un - u(n-1) is equal to
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- If frac {x}{cos theta} = frac {y}{cos(theta -(2pi)/3)} = frac {z}{co...
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- If cos alpha + cos beta + cos gamma = 0 then cos 3alpha + cos 3beta + ...
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- tan 40^circ + 2tan 10^circ is equal to
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- A factor of cos 4theta - cos 4phi is
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- The chord AB of a circle subtends an angle of frac {2pi}{3} at a point...
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- If sin alpha + cos alpha = lambda then find |sin^(6) alpha - cos^(6) a...
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- Let f(theta) = (cos theta+ cot theta)/(sin theta+ tan theta) and the s...
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