Advertisements
Advertisements
प्रश्न
Find the value 'x', if:
Advertisements
उत्तर
In right ΔABC,
sin45° = `"BC"/"AC"`
⇒ `(1)/sqrt(2) = (15)/x`
⇒ x = `15sqrt(2)"cm"`.
APPEARS IN
संबंधित प्रश्न
Solve the following equation for A, if 2 sin 3 A = 1
If `sqrt(2) = 1.414 and sqrt(3) = 1.732`, find the value of the following correct to two decimal places tan60°
If A = B = 60°, verify that: tan(A - B) = `(tan"A" - tan"B")/(1 + tan"A" tan"B"")`
Find lengths of diagonals AC and BD. Given AB = 24 cm and ∠BAD = 60°.
Find the value of 'y' if `sqrt(3)` = 1.723.
Given your answer correct to 2 decimal places.
Find x and y, in each of the following figure:
Evaluate the following: `(5sec68°)/("cosec"22°) + (3sin52° sec38°)/(cot51° cot39°)`
Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: tan77° - cot63° + sin57°
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°)`
If A, B and C are interior angles of ΔABC, prove that sin`(("A" + "B")/2) = cos "C"/(2)`
