рдорд░рд╛рдареА

In the Following, Trigonometric Ratios is Given. Find the Values of the Other Trigonometric Ratios. `Cosec Theta = Sqrt10`

Advertisements
Advertisements

рдкреНрд░рд╢реНрди

In the following, trigonometric ratios are given. Find the values of the other trigonometric ratios.

`cosec theta = sqrt10`

Advertisements

рдЙрддреНрддрд░

consider a right-angled Δle ABC, we get

Let x be the adjacent side.

By applying Pythagoras theorem

ЁЭР┤ЁЭР╢2 = ЁЭР┤ЁЭР╡2 + ЁЭР╡ЁЭР╢2

`(sqrt10)^2 = 1^2 + x^2`

x2 = 10 − 1 = 9

x = 3

`sin theta = 1/cosec theta = 1/sqrt10`

`cos theta = "adjacent"/"hypotenuse" = 3/sqrt10`

`tan theta = "opposite sides"/"adjacebt side" = 1/3`

`sec theta = 1/cos theta = sqrt10/3`

`cot theta = 1/tan theta = (1/1)/3 = 3`

shaalaa.com
  рдпрд╛ рдкреНрд░рд╢реНрдирд╛рдд рдХрд┐рдВрд╡рд╛ рдЙрддреНрддрд░рд╛рдд рдХрд╛рд╣реА рддреНрд░реБрдЯреА рдЖрд╣реЗ рдХрд╛?
рдкрд╛рда 10: Trigonometric Ratios - Exercise 10.1 [рдкреГрд╖реНрда реирей]

APPEARS IN

рдЖрд░.рдбреА. рд╢рд░реНрдорд╛ Mathematics [English] Class 10
рдкрд╛рда 10 Trigonometric Ratios
Exercise 10.1 | Q 1.11 | рдкреГрд╖реНрда реирей

рд╡реНрд╣рд┐рдбрд┐рдУ рдЯреНрдпреВрдЯреЛрд░рд┐рдпрд▓VIEW ALL [2]

рд╕рдВрдмрдВрдзрд┐рдд рдкреНрд░рд╢реНтАНрди

Given sec θ = `13/12`, calculate all other trigonometric ratios.


In ΔABC, right angled at B. If tan A = `1/sqrt3` , find the value of

  1.  sin A cos C + cos A sin C
  2. cos A cos C − sin A sin C

Prove that `(sin "A" - 2sin^3 "A")/(2cos^3 "A" - cos "A") = tan "A"`


In the following, one of the six trigonometric ratios is given. Find the values of the other trigonometric ratios.

`tan alpha = 5/12`


In the following, one of the six trigonometric ratios is given. Find the values of the other trigonometric ratios.

`cos theta = 12/2`


If 3 tan θ = 4, find the value of `(4cos theta - sin theta)/(2cos theta + sin theta)`


If `sin theta = a/b` find sec θ + tan θ in terms of a and b.


If Cosec A = 2 find `1/(tan A) + (sin A)/(1 + cos A)`


Evaluate the following

sin2 30° + sin2 45° + sin2 60° + sin2 90°


Evaluate the following

tan2 30° + tan2 60° + tan45°


Evaluate the Following

`cot^2 30^@ - 2 cos^2 60^circ- 3/4 sec^2 45^@ - 4 sec^2 30^@`


Evaluate the Following

(cos 0° + sin 45° + sin 30°)(sin 90° − cos 45° + cos 60°)


Evaluate the Following

`(sin 30^@ - sin 90^2 + 2 cos 0^@)/(tan 30^@ tan 60^@)`


Evaluate the Following:

`tan 45^@/(cosec 30^@) + sec 60^@/cot 45^@  - (5 sin 90^@)/(2 cos 0^@)`


Find the value of x in the following :

`sqrt3 tan 2x = cos 60^@ + sin45^@ cos 45^@`


If x sin (90° – θ) cot (90° – θ) = cos (90° – θ), then x is equal to ______.


If f(x) = `3cos(x + (5π)/6) - 5sinx + 2`, then maximum value of f(x) is ______.


If sin θ – cos θ = 0, then find the value of sin4 θ + cos4 θ.


(3 sin2 30° – 4 cos2 60°) is equal to ______.


In ΔBC, right angled at C, if tan A = `8/7`, then the value of cot B is ______.


Share
Notifications

Englishрд╣рд┐рдВрджреАрдорд░рд╛рдареА


      Forgot password?
Use app×