Advertisements
Advertisements
प्रश्न
The value of cos2 45° – sin2 45° is:
पर्याय
`sqrt3/2`
\[\frac{1}{2}\]
0
`1/sqrt1`
MCQ
उत्तर
0
shaalaa.com
Trigonometric Ratios of Compound Angles
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Find the value of the following:
cosec 15º
Find the value of the following:
cos 70° cos 10° – sin 70° sin 10°
Prove that:
sin(A + 60°) + sin(A – 60°) = sin A.
If sin A = `3/5`, find the values of cos 3A and tan 3A.
Find the value of tan `pi/8`.
Prove that `2 sin^2 (3pi)/4 + 2 cos^2 pi/4 + 2 sec^2 pi/3` = 10
The value of sin (-420°)
The value of sin 15° cos 15° is:
If sin A + cos A = 1 then sin 2A is equal to:
If tan A = `1/2` and tan B = `1/3` then tan(2A + B) is equal to:
