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Using four values of θ satisfying the equation 8cos4θ+15cos2θ-2=0 in the interval 0,4π, an arithmetic progression is formed, then:

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Important Questions on Trigonometric Equations and Inequalities

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Beta Question Bank for Engineering: Mathematics>Chapter 13 - Trigonometric Equations and Inequalities>EXERCISE-2>Q 13
The solution(s) of the equation cos2xsin6x=cos3xsin5x in the interval 0,π is/are
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Beta Question Bank for Engineering: Mathematics>Chapter 13 - Trigonometric Equations and Inequalities>EXERCISE-2>Q 14
The equation 4sin2x-23+1sinx+3=0 has
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Beta Question Bank for Engineering: Mathematics>Chapter 13 - Trigonometric Equations and Inequalities>EXERCISE-2>Q 15
If cos22x+2cos2x=1, x∈-π,π, then x can take the values
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Beta Question Bank for Engineering: Mathematics>Chapter 13 - Trigonometric Equations and Inequalities>EXERCISE-2>Q 16
sin3θ-cos3θsinθ-cosθ-cosθ1+cot2θ-2tanθcotθ=-1 if
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Beta Question Bank for Engineering: Mathematics>Chapter 13 - Trigonometric Equations and Inequalities>EXERCISE-2>Q 17
The maximum value of log20(3sinx-4cosx+15) -
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Beta Question Bank for Engineering: Mathematics>Chapter 13 - Trigonometric Equations and Inequalities>EXERCISE-3>Q 10
Find number of values of x in the interval 0, 5π satisfying the equation 32sinx-cosx=cos2x.
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Beta Question Bank for Engineering: Mathematics>Chapter 13 - Trigonometric Equations and Inequalities>EXERCISE-3>Q 11
Find number of values of x in the interval 0,2π satisfying the equation cotx-2sin2x=1.
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Beta Question Bank for Engineering: Mathematics>Chapter 13 - Trigonometric Equations and Inequalities>EXERCISE-3>Q 12
Find number of values of x in the interval -2π,2π satisfying the equation 13-18 tan x=6tanx-3.