1
IIT-JEE 1987
MCQ (Single Correct Answer)
+2
-0.5
The number of all possible triplets $$\left( {{a_1},\,{a_2},\,{a_3}} \right)$$ such that $${a_1} + {a_2}\,\,\cos \left( {2x} \right) + {a_3}{\sin ^2}\left( x \right) = 0\,$$ for all $$x$$ is
2
IIT-JEE 1986
MCQ (Single Correct Answer)
+2
-0.5
The expression $$2\left[ {{{\sin }^6}\left( {{\pi \over 2} + \alpha } \right) + {{\sin }^6}\left( {5\pi - \alpha } \right)} \right]$$ is equal to
3
IIT-JEE 1984
MCQ (Single Correct Answer)
+3
-0.75
$$\left( {1 + \cos {\pi \over 8}} \right)\left( {1 + \cos {{3\pi } \over 8}} \right)\left( {1 + \cos {{5\pi } \over 8}} \right)\left( {1 + \cos {{7\pi } \over 8}} \right)$$ is equal to
4
IIT-JEE 1981
MCQ (Single Correct Answer)
+2
-0.5
The general solution of the trigonometric equation sin x+cos x=1 is given by:
Questions Asked from Trigonometric Functions & Equations (MCQ (Single Correct Answer))
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