Advertisements
Advertisements
प्रश्न
Choose the correct alternative:
If `cot^-1(sqrt(sin alpha)) + tan^-1(sqrt(sin alpha))` = u, then cos 2u is equal to
विकल्प
tan2α
0
– 1
tan 2α
Advertisements
उत्तर
– 1
APPEARS IN
संबंधित प्रश्न
If `tan^-1(2x)+tan^-1(3x)=pi/4`, then find the value of ‘x’.
Prove `tan^(-1) 1/5 + tan^(-1) (1/7) + tan^(-1) 1/3 + tan^(-1) 1/8 = pi/4`
sin–1 (1 – x) – 2 sin–1 x = `pi/2`, then x is equal to ______.
Find the number of solutions of the equation `tan^-1 (x - 1) + tan^-1x + tan^-1(x + 1) = tan^-1(3x)`
Choose the correct alternative:
`sin^-1 (tan pi/4) - sin^-1 (sqrt(3/x)) = pi/6`. Then x is a root of the equation
Evaluate: `tan^-1 sqrt(3) - sec^-1(-2)`.
Prove that cot–17 + cot–18 + cot–118 = cot–13
If 3 tan–1x + cot–1x = π, then x equals ______.
The value of the expression `tan (1/2 cos^-1 2/sqrt(5))` is ______.
If y = `2 tan^-1x + sin^-1 ((2x)/(1 + x^2))` for all x, then ______ < y < ______.
The maximum value of sinx + cosx is ____________.
`"cot" (pi/4 - 2 "cot"^-1 3) =` ____________.
`"tan"^-1 1 + "cos"^-1 ((-1)/2) + "sin"^-1 ((-1)/2)`
The value of sin (2tan-1 (0.75)) is equal to ____________.
Solve for x : `"sin"^-1 2"x" + "sin"^-1 3"x" = pi/3`
The value of `"tan"^-1 (3/4) + "tan"^-1 (1/7)` is ____________.
If `"tan"^-1 2 "x + tan"^-1 3 "x" = pi/4`, then x is ____________.
`tan^-1 1/2 + tan^-1 2/11` is equal to
What is the simplest form of `tan^-1 sqrt(1 - x^2 - 1)/x, x ≠ 0`
