English

Eliminate θ from the following : x = 5 + 6cosecθ, y = 3 + 8cotθ

Advertisements
Advertisements

Question

Eliminate θ from the following :

x = 5 + 6cosecθ, y = 3 + 8cotθ

Sum
Advertisements

Solution

x = 5 + 6cosecθ, y = 3 + 8cotθ

∴ x – 5 = 6cosecθ, y – 3 = 8cotθ

∴ cosecθ = `(x - 5)/6, cot theta = (y - 3)/8`

We know that,

∴ cosec2θ – cot2θ = 1 

`((x - 5)/6)^2 - ((y - 3)/8)^2` = 1

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Trigonometry - 1 - EXERCISE 2.2 [Page 31]

RELATED QUESTIONS

Evaluate the following:

sin 30° + cos 45° + tan 180°


Evaluate the following : 

cosec 45° + cot 45° + tan 0°


Eliminate θ from the following: 

x = 3secθ , y = 4tanθ


Eliminate θ from the following :

x = 4cosθ − 5sinθ, y = 4sinθ + 5cosθ


Find sinθ such that 3cosθ + 4sinθ = 4


If cosecθ + cotθ = 5, then evaluate secθ.


Prove the following identities:

(sinθ + sec θ)2 + (cosθ + cosec θ)2 = (1 + cosecθ sec θ)2 


Prove the following identities:

(1 + cot θ – cosec θ)(1 + tan θ + sec θ) = 2


Prove the following identities:

`sintheta/(1 + costheta) + (1 + costheta)/sintheta` = 2cosecθ


Prove the following identities:

(sec A + cos A)(sec A − cos A) = tan2A + sin2A


Prove the following identities:

`(1 - sectheta + tan theta)/(1 + sec theta - tan theta) = (sectheta + tantheta - 1)/(sectheta + tantheta + 1)`


Select the correct option from the given alternatives:

If cosecθ + cotθ = `5/2`, then the value of tanθ is


Select the correct option from the given alternatives:

`1 - sin^2theta/(1 + costheta) + (1 + costheta)/sintheta - sintheta/(1 - costheta)` equals


Prove the following:  

sin2A cos2B + cos2A sin2B + cos2A cos2B + sin2A sin2B = 1


Prove the following:

`((1 + cot theta + tan theta)(sin theta - costheta)) /(sec^3theta - "cosec"^3theta)`= sin2θ cos2θ


Prove the following:

2 sec2θ – sec4θ – 2cosec2θ + cosec4θ = cot4θ – tan4θ


Prove the following:

sin4θ + cos4θ = 1 – 2 sin2θ cos2θ


Prove the following:

2(sin6θ + cos6θ) – 3(sin4θ + cos4θ) + 1 = 0


Prove the following:

cos4θ − sin4θ +1= 2cos2θ


Prove the following:

sin4θ +2sin2θ . cos2θ = 1 − cos4θ


Prove the following:

(sinθ + cosecθ)2 + (cosθ + secθ)2 = tan2θ + cot2θ + 7


Prove the following:

sin6A + cos6A = 1 − 3sin2A + 3 sin4A


Prove the following:

(1 + tanA · tanB)2 + (tanA − tanB)2 = sec2A · sec2B


Prove the following:

`(1 + cottheta  +  "cosec" theta)/(1 - cottheta  +  "cosec" theta) = ("cosec" theta  + cottheta - 1)/(cottheta - "cosec"theta + 1)`


Prove the following:

`(tantheta + sectheta - 1)/(tantheta + sectheta + 1) = tantheta/(sec theta + 1)`


Prove the following identity:

`(1 - sec theta + tan theta)/(1 + sec theta - tan theta) = (sec theta + tan theta - 1)/(sec theta + tan theta + 1)`


If θ lies in the first quadrant and 5 tan θ = 4, then `(5 sin θ - 3 cos θ)/(sin θ + 2 cos θ)` is equal to ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×