हिंदी

Eliminate θ from the following: 2x = 3 − 4 tan θ, 3y = 5 + 3 sec θ

Advertisements
Advertisements

प्रश्न

Eliminate θ from the following:

2x = 3 − 4 tan θ, 3y = 5 + 3 sec θ

योग
Advertisements

उत्तर

2x = 3 − 4 tan θ, 3y = 5 + 3 sec θ

∴ 2x − 3 = − 4 tan θ,  3y − 5 = 3 sec θ

∴ tanθ = `(2x - 3)/(− 4) and secθ = (3y - 5)/3`

We know that,

sec2θ = 1 +  tan2θ

∴ sec2θ – tan2θ = 1

Therefore,

∴ `((3y - 5)/3)^2 - ((2x - 3)/(− 4))^2` = 1

∴ `(3y - 5)^2/9 - (2x - 3)^2/16` = 1

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2: Trigonometry - 1 - EXERCISE 2.2 [पृष्ठ ३१]

APPEARS IN

बालभारती Mathematics and Statistics (Arts and Science) Part 1 [English] Standard 11 Maharashtra State Board
अध्याय 2 Trigonometry - 1
EXERCISE 2.2 | Q 4) v) | पृष्ठ ३१

संबंधित प्रश्न

Evaluate the following:

sin 30° + cos 45° + tan 180°


Evaluate the following : 

sin 30° × cos 45° × tan 360°


Eliminate θ from the following: 

x = 3secθ , y = 4tanθ


Eliminate θ from the following : 

x = 6cosecθ, y = 8cotθ


Eliminate θ from the following :

x = 4cosθ − 5sinθ, y = 4sinθ + 5cosθ


Find the acute angle θ such that 2 cos2θ = 3 sin θ.


Find sinθ such that 3cosθ + 4sinθ = 4


Prove the following identities: 

(cos2A – 1) (cot2A + 1) = −1


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:

`tan^3theta/(1 + tan^2theta) + cot^3theta/(1 + cot^2theta` = secθ cosecθ – 2sinθ cosθ


Prove the following identities:

`1/(sectheta + tantheta) - 1/costheta = 1/costheta - 1/(sectheta - tantheta)`


Prove the following identities:

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


Prove the following identity:

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


Prove the following identities:

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


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:

The value of tan1°.tan2°tan3°..... tan89° is equal to


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:

sin4θ + cos4θ = 1 – 2 sin2θ cos2θ


Prove the following:

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


Prove the following:

sin4θ +2sin2θ . cos2θ = 1 − cos4θ


Prove the following:

`(sin^3theta + cos^3theta)/(sintheta + costheta) + (sin^3theta - cos^3theta)/(sintheta - costheta)` = 2


Prove the following:

sin8θ − cos8θ = (sin2θ − cos2θ) (1 − 2 sin2θ cos2θ)


Prove the following:

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


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×