Advertisements
Advertisements
प्रश्न
In a right triangle PQR, right angled at Q. If tan P = `sqrt(3)`, then evaluate 2 sin P cos P.

Advertisements
उत्तर

We have,
`\implies` tan P = `sqrt(3)`
`\implies` tan P = `(RQ)/(PQ)`
= `sqrt(3)`
= tan 60°
`\implies` P = 60°
So, 2 sin P cos P = 2 × 60° × cos 60°
= `2 xx sqrt(3)/2 xx 1/2`
= `sqrt(3)/2`
APPEARS IN
संबंधित प्रश्न
In the following, trigonometric ratios are given. Find the values of the other trigonometric ratios.
`sin theta = 11/5`
In the following, one of the six trigonometric ratios is given. Find the values of the other trigonometric ratios.
`tan alpha = 5/12`
In the following, trigonometric ratios are given. Find the values of the other trigonometric ratios.
`sec theta = 13/5`
if `sec A = 17/8` verify that `(3 - 4sin^2A)/(4 cos^2 A - 3) = (3 - tan^2 A)/(1 - 3 tan^2 A)`
Evaluate the following
cos 60° cos 45° - sin 60° ∙ sin 45°
Evaluate the following
`sin^2 30° cos^2 45 ° + 4 tan^2 30° + 1/2 sin^2 90° − 2 cos^2 90° + 1/24 cos^2 0°`
If sin (A − B) = sin A cos B − cos A sin B and cos (A − B) = cos A cos B + sin A sin B, find the values of sin 15° and cos 15°.
The value of sin² 30° – cos² 30° is ______.
The value of the expression (sin 80° – cos 80°) is negative.
What will be the value of sin 45° + `1/sqrt(2)`?
