Advertisements
Advertisements
प्रश्न
`(sin 40° + cos 50°)/(tan 38°20')`
उत्तर
`(sin 40° + cos 50°)/(tan 38°20')`
= `(0.6428 + 0.6428)/(0.7907)`
= `(1.2856)/(0.7907)`
= 1.6259.
APPEARS IN
संबंधित प्रश्न
Evaluate without using trigonometric tables,
`sin^2 28^@ + sin^2 62^@ + tan^2 38^@ - cot^2 52^@ + 1/4 sec^2 30^@`
Without using trigonometrical tables, evaluate:
`cosec^2 57^circ - tan^2 33^circ + cos 44^circ cosec 46^circ - sqrt(2) cos 45^circ - tan^2 60^circ`
Prove the following identities, where the angles involved are acute angles for which the expressions are defined:
(sin A + cosec A)2 + (cos A + sec A)2 = 7 + tan2 A + cot2 A
Without using trigonometric tables, evaluate :
`sin 16^circ/cos 74^circ`
Without using trigonometric tables, evaluate :
`cot 38^circ/tan 52^circ`
Prove that:
\[\frac{\sin\theta \cos(90^\circ - \theta)\cos\theta}{\sin(90^\circ- \theta)} + \frac{\cos\theta \sin(90^\circ - \theta)\sin\theta}{\cos(90^\circ - \theta)}\]
From trigonometric table, write the values of sin 37°19'.
From the trigonometric table, write the values of tan 45°48'.
Solve the following equation: `(cos^2θ - 3 cosθ + 2)/sin^2θ` = 1.