Advertisements
Advertisements
Question
Evaluate the following: `(sin0° sin35° sin55° sin75°)/(cos22° cos64° cos58° cos90°)`
Advertisements
Solution
`(sin0° sin35° sin55° sin75°)/(cos22° cos64° cos58° cos90°)`
= `(0 xx sin35° sin55° sin75°)/(cos22° cos64° cos68° xx 0)`
= 0.
APPEARS IN
RELATED QUESTIONS
State for any acute angle θ whether cos θ increases or decreases as θ increases.
Solve the following equations for A, if `sqrt3` tan A = 1
If sin 3A = 1 and 0 < A < 90°, find cos 2A
Solve for x : cos `(x/(2)+10°) = (sqrt3)/(2)`
Find the value of: `sqrt((1 - sin^2 60°)/(1 + sin^2 60°)` If 3 tan2θ - 1 = 0, find the value
a. cosθ
b. sinθ
Find lengths of diagonals AC and BD. Given AB = 24 cm and ∠BAD = 60°.
Find the length of EC.
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.
Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: cos84° + cosec69° - cot68°
If A + B = 90°, prove that `(tan"A" tan"B" + tan"A" cot"B")/(sin"A" sec"B") - (sin^2"B")/(cos^2"A")` = tan2A
