Home
Class 11
MATHS
If sinx =1/3, then sin 3x is:...

If `sinx =1/3`, then sin 3x is:

A

`23/27`

B

`-23/27`

C

`sqrt(23/27)`

D

`(4 sqrt2)/9`.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • TRIGNOMETRY

    MODERN PUBLICATION|Exercise EXERCISE|730 Videos

  • STRAIGHT LINES

    MODERN PUBLICATION|Exercise EXERCISE|304 Videos

Similar Questions

Explore conceptually related problems

if x and y are acute angles such that cosx + cosy = 3/2 and sinx + siny = 3/4 then sin(x+y)=

Prove that sin4x = 4sinx cos^3x - 4cosx sin^3x

Prove that sin7x + sin5x + sin3x + sinx = 4cosx cos2x sin4x

If x!=(npi)/2,\ n\ in I and ( cosx )^(sin ^2x-3sinx+2)=1, then find the general solution of xdot

Prove that: (sin 3x + sin x) sin x + (cos 3x -cos x) cos x = 0

Prove that (sin3x + sinx)sinx + (cos3x - cosx)cosx = 0

Find the number of solution of the equations sin^3 x cos x + sin^(2) x* cos^(2) x+sinx * cos^(3) x=1 , when x in[0,2pi]

Solutions of sin^(-1) (sinx) = sinx are if x in (0, 2pi)

Prove the following: 3sin^–1 x = sin^–1 (3x – 4x^3), x in [–1/2 , 1/2]

Prove that the values of the function (sin x cos 3x)/(cos x sin 3x) do not lie between 1/3 and 3.