Advertisements
Advertisements
प्रश्न
Prove the following: tanθ tan(90° - θ) = cotθ cot(90° - θ)
Advertisements
उत्तर
L.H.S.
= tanθ tan(90° - θ)
= cot(90° - θ) x cotθ
= cotθ cot(90° - θ)
= R.H.S.
APPEARS IN
संबंधित प्रश्न
If sin 3A = 1 and 0 < A < 90°, find sin A
Use the given figure to find:
(i) tan θ°
(ii) θ°
(iii) sin2θ° - cos2θ°
(iv) Use sin θ° to find the value of x.
Find the magnitude of angle A, if 2 sin A cos A - cos A - 2 sin A + 1 = 0
Solve the following equation for A, if tan 3 A = 1
Solve for x : 3 tan2 (2x - 20°) = 1
Solve for x : cos2 30° + cos2 x = 1
If θ = 30°, verify that: sin2θ = `(2tanθ)/(1 ++ tan^2θ)`
A ladder is placed against a vertical tower. If the ladder makes an angle of 30° with the ground and reaches upto a height of 18 m of the tower; find length of the ladder.
Evaluate the following: sin31° - cos59°
Evaluate the following: `(3sin^2 40°)/(4cos^2 50°) - ("cosec"^2 28°)/(4sec^2 62°) + (cos10° cos25° cos45° "cosec"80°)/(2sin15° sin25° sin45° sin65° sec75°)`
