HARD
JEE Main/Advance
IMPORTANT
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If the maximum value of cos(cosx) is a and minimum value is b, then

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Important Questions on Trigonometric Functions

HARD
JEE Main/Advance
IMPORTANT
If 2sinA1+sinA+cosA=k, then 1+sinA-cosA1+sinA is -
MEDIUM
JEE Main/Advance
IMPORTANT
If sinx+sin2x=1, then the value of  cos12x+3cos10x+3cos8x+cos6x-1 is equal to
HARD
JEE Main/Advance
IMPORTANT
The maximum value of cos2(cos(33π+θ))+sin2(sin(45π+θ)) is -
HARD
JEE Main/Advance
IMPORTANT
In a ΔABC, if sinA-cosB=cosC, then the maximum possible measure of B is -
HARD
JEE Main/Advance
IMPORTANT
The value of cos10°cos20°cos40° is
HARD
JEE Main/Advance
IMPORTANT
The value of the expression
2cosπ13cos9π13+cos3π13+cos5π13 is
HARD
JEE Main/Advance
IMPORTANT
If sinθ=12,cosϕ=13, then θ+ϕ belongs to, where 0<θ,ϕ<π2 -
HARD
JEE Main/Advance
IMPORTANT
The range of f(θ)=3cos2θ-83cosθ·sinθ+5sin2θ-7 is given by -