Advertisements
Advertisements
Question
Find the value 'x', if:
Advertisements
Solution
In right ΔPQS,
sin30° = `"PQ"/"PS"`
⇒ `(1)/(2) = x/(100)`
⇒ x = 50m.
APPEARS IN
RELATED QUESTIONS
Solve the following equation for A, if 2 sin 3 A = 1
Calculate the value of A, if (tan A - 1) (cosec 3A - 1) = 0
If θ = 30°, verify that: tan2θ = `(2tanθ)/(1 - tan^2θ)`
In a rectangle ABCD, AB = 20cm, ∠BAC = 60°, calculate side BC and diagonals AC and BD.
Evaluate the following: cosec 54° - sec 36°
Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: cos84° + cosec69° - cot68°
Evaluate the following: cos39° cos48° cos60° cosec42° cosec51°
Prove the following: `(tan(90° - θ)cotθ)/("cosec"^2 θ)` = cos2θ
Prove the following: sin230° + cos230° = `(1)/(2)sec60°`
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
