Advertisements
Advertisements
प्रश्न
In ΔABC, ∠ABC = 90° and ∠ACB = θ. Then write the ratios of sin θ and tan θ from the figure.

Advertisements
उत्तर
sin θ = `("AB")/("AC")` and tan θ = `("AB")/("BC")`
APPEARS IN
संबंधित प्रश्न
In ΔABC, right angled at B. If tan A = `1/sqrt3` , find the value of
- sin A cos C + cos A sin C
- cos A cos C − sin A sin C
State whether the following are true or false. Justify your answer.
cos A is the abbreviation used for the cosecant of angle A.
In the following, trigonometric ratios is given. Find the value of the other trigonometric ratios.
`cos A = 4/5`
In the following, trigonometric ratios are given. Find the values of the other trigonometric ratios.
`sin theta = 11/5`
In the following, trigonometric ratios are given. Find the values of the other trigonometric ratios.
`sec theta = 13/5`
If `cot theta = 3/4`, prove that `sqrt((sec theta - cosec theta)/(sec theta + cosec theta)) = 1/sqrt7`
Evaluate the following
cos2 30° + cos2 45° + cos2 60° + cos2 90°
Evaluate the following
tan2 30° + tan2 60° + tan2 45°
Evaluate the following:
`sin^2 30° cos^2 45 ° + 4 tan^2 30° + 1/2 sin^2 90° - 2 cos^2 90° + 1/24 cos^2 0°`
Evaluate the Following
`4/(cot^2 30^@) + 1/(sin^2 60^@) - cos^2 45^@`
Evaluate the Following
4(sin4 30° + cos2 60°) − 3(cos2 45° − sin2 90°) − sin2 60°
Evaluate the Following
`sin 30^2/sin 45^@ + tan 45^@/sec 60^@ - sin 60^@/cot 45^@ - cos 30^@/sin 90^@`
The value of sin² 30° – cos² 30° is ______.
`(1 + tan^2 "A")/(1 + cot^2 "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 ______.
Find the value of sin 0° + cos 0° + tan 0° + sec 0°.
`sqrt(3)` cos2A + `sqrt(3)` sin2A is equal to ______.
The maximum value of the expression 5cosα + 12sinα – 8 is equal to ______.
Evaluate 2 sec2 θ + 3 cosec2 θ – 2 sin θ cos θ if θ = 45°.
If sin θ – cos θ = 0, then find the value of sin4 θ + cos4 θ.
