Advertisements
Advertisements
प्रश्न
Choose the correct alternative:
If tan 40° = λ, then `(tan 140^circ - tan 130^circ)/(1 + tan 140^circ * tan 130^circ)` =
पर्याय
`(1 - lambda^2)/lambda`
`(1 + lambda^2)/lambda`
`(1 + lambda^2)/(2lambda)`
`(1 - lambda^2)/(2lambda)`
Advertisements
उत्तर
`(1 - lambda^2)/(2lambda)`
APPEARS IN
संबंधित प्रश्न
If \[\tan x = \frac{a}{b},\] show that
Prove that
In a ∆A, B, C, D be the angles of a cyclic quadrilateral, taken in order, prove that cos(180° − A) + cos (180° + B) + cos (180° + C) − sin (90° + D) = 0
If \[\frac{\pi}{2} < x < \frac{3\pi}{2},\text{ then }\sqrt{\frac{1 - \sin x}{1 + \sin x}}\] is equal to
Find the general solution of the following equation:
Find the general solution of the following equation:
Find the general solution of the following equation:
Solve the following equation:
If cos x = k has exactly one solution in [0, 2π], then write the values(s) of k.
The number of solution in [0, π/2] of the equation \[\cos 3x \tan 5x = \sin 7x\] is
The smallest positive angle which satisfies the equation
In (0, π), the number of solutions of the equation \[\tan x + \tan 2x + \tan 3x = \tan x \tan 2x \tan 3x\] is
The number of values of x in [0, 2π] that satisfy the equation \[\sin^2 x - \cos x = \frac{1}{4}\]
If \[\cos x = - \frac{1}{2}\] and 0 < x < 2\pi, then the solutions are
Find the principal solution and general solution of the following:
cot θ = `sqrt(3)`
Solve the following equations:
sin θ + sin 3θ + sin 5θ = 0
Solve the following equations:
2cos 2x – 7 cos x + 3 = 0
If a cosθ + b sinθ = m and a sinθ - b cosθ = n, then show that a2 + b2 = m2 + n2
