Advertisements
Advertisements
प्रश्न
Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: cos84° + cosec69° - cot68°
Advertisements
उत्तर
cos84° + cosec69° - cot68°
= cos(90° - 6°) + cosec(90° - 21°) - cot(90°- 22°)
= sin6° + sec21° - tan22°.
APPEARS IN
संबंधित प्रश्न
Solve the following equations for A, if `sqrt3` tan A = 1
Solve for 'θ': `sec(θ/2 + 10°) = (2)/sqrt(3)`
If θ = 30°, verify that: 1 - sin 2θ = (sinθ - cosθ)2
In the given figure, AB and EC are parallel to each other. Sides AD and BC are 1.5 cm each and are perpendicular to AB. Given that ∠AED = 45° and ∠ACD = 30°. Find:
a. AB
b. AC
c. AE
Find:
a. BC
b. AD
c. AC
Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: sin53° + sec66° - sin50°
Evaluate the following: cot20° cot40° cot45° cot50° cot70°
Evaluate the following: cos39° cos48° cos60° cosec42° cosec51°
Evaluate the following: `(sin0° sin35° sin55° sin75°)/(cos22° cos64° cos58° cos90°)`
Prove the following: sin230° + cos230° = `(1)/(2)sec60°`
