Advertisements
Advertisements
प्रश्न
Find will be the value of cos 90° + sin 90°.
Advertisements
उत्तर
cos 90° = 0 and sin 90° = 1
∴ cos 90° + sin 90° = 0 + 1 = 1
Hence, the value of cos 90° + sin 90° is 1.
APPEARS IN
संबंधित प्रश्न
If sin A = `3/4`, calculate cos A and tan A.
If ∠A and ∠B are acute angles such that cos A = cos B, then show that ∠A = ∠B.
If 4 tan θ = 3, evaluate `((4sin theta - cos theta + 1)/(4sin theta + cos theta - 1))`
In the following, trigonometric ratios are given. Find the values of the other trigonometric ratios.
`cosec theta = sqrt10`
In the following, one of the six trigonometric ratios is given. Find the values of the other trigonometric ratios.
`cos theta = 12/2`
If `cot theta = 1/sqrt3` show that `(1 - cos^2 theta)/(2 - sin^2 theta) = 3/5`
If `tan theta = 1/sqrt7` `(cosec^2 theta - sec^2 theta)/(cosec^2 theta + sec^2 theta) = 3/4`
if `sec A = 17/8` verify that `(3 - 4sin^2A)/(4 cos^2 A - 3) = (3 - tan^2 A)/(1 - 3 tan^2 A)`
Evaluate the following
sin2 30° + sin2 45° + sin2 60° + sin2 90°
Evaluate the following
cos2 30° + cos2 45° + cos2 60° + cos2 90°
Evaluate the Following
4(sin4 30° + cos2 60°) − 3(cos2 45° − sin2 90°) − sin2 60°
Find the value of x in the following :
`2 sin x/2 = 1`
If sin (A − B) = sin A cos B − cos A sin B and cos (A − B) = cos A cos B + sin A sin B, find the values of sin 15° and cos 15°.
If cos (40° + A) = sin 30°, then value of A is ______.
If cos A + cos² A = 1, then sin² A + sin4 A is equal to ______.
If cos (81 + θ)° = sin`("k"/3 - theta)^circ` where θ is an acute angle, then the value of k is ______.
5 tan² A – 5 sec² A + 1 is equal to ______.
If sinθ = `1/sqrt(2)` and `π/2 < θ < π`. Then the value of `(sinθ + cosθ)/tanθ` is ______.
In ΔBC, right angled at C, if tan A = `8/7`, then the value of cot B is ______.
