English

If Tan Theta = 24/7, Find that Sin ๐œƒ + Cos ๐œƒ - Mathematics

Advertisements
Advertisements

Question

If `tan theta = 24/7`, find that sin ๐œƒ + cos ๐œƒ

Advertisements

Solution

Let x − 1 be the hypotenuse By applying Pythagoras theorem we get

๐ด๐ถ2 = ๐ด๐ต2 + ๐ต๐ถ2

๐‘ฅ2 = (24)2 + (7)2

๐‘ฅ2 = 576 + 49 = 62.5

x = 25

`sin theta = (AB)/(AC) = 24/25`

`cos theta = (BC)/(AC) = 7/25`

`sin theta + cos theta = 24/25 + 7/25`

`= 31/25`

shaalaa.com
  Is there an error in this question or solution?
Chapter 10: Trigonometric Ratios - Exercise 10.1 [Page 25]

APPEARS IN

RD Sharma Mathematics [English] Class 10
Chapter 10 Trigonometric Ratios
Exercise 10.1 | Q 27 | Page 25

Video TutorialsVIEW ALL [2]

RELATED QUESTIONS

In ΔABC right angled at B, AB = 24 cm, BC = 7 m. Determine:

sin C, cos C


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

`sin A = 2/3`


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.

`tan theta = 8/15`


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

`sec theta = 13/5`


If 3 cot θ = 2, find the value of  `(4sin theta - 3 cos theta)/(2 sin theta + 6cos theta)`.


if `cot theta = 3/4` prove that `sqrt((sec theta - cosec theta)/(sec theta +cosec theta)) = 1/sqrt7`


Evaluate the following

cos2 30° + cos2 45° + cos2 60° + cos2 90°


Evaluate the following

`sin^2 30° cos^2 45 ° + 4 tan^2 30° + 1/2 sin^2 90° − 2 cos^2 90° + 1/24 cos^2 0°`


Evaluate the Following

cosec3 30° cos 60° tan3 45° sin2 90° sec2 45° cot 30°


Evaluate the Following

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


Evaluate the Following

4(sin4 30° + cos2 60°) − 3(cos2 45° − sin2 90°) − sin2 60°


Find the value of x in the following :

cos 2x = cos 60° cos 30° + sin 60° sin 30°


If `sqrt2 sin (60° – α) = 1` then α is ______.


3 sin² 20° – 2 tan² 45° + 3 sin² 70° is equal to ______.


Prove that sec θ + tan θ = `cos θ/(1 - sin θ)`.

Proof: L.H.S. = sec θ + tan θ

= `1/square + square/square`

= `square/square`  ......`(โˆต sec θ = 1/square, tan θ = square/square)`

= `((1 + sin θ) square)/(cos θ  square)`  ......[Multiplying `square` with the numerator and denominator]

= `(1^2 - square)/(cos θ  square)`

= `square/(cos θ  square)`

= `cos θ/(1 - sin θ)` = R.H.S.

∴ L.H.S. = R.H.S.

∴ sec θ + tan θ = `cos θ/(1 - sin θ)`


Prove that `tan θ/(1 - cot θ) + cot θ/(1 - tanθ)` = 1 + sec θ cosec θ


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


If b = `(3 + cot  π/8 + cot  (11π)/24 - cot  (5π)/24)`, then the value of `|bsqrt(2)|` is ______.


If sinθ = `1/sqrt(2)` and `π/2 < θ < π`. Then the value of `(sinθ + cosθ)/tanθ` is ______.


Share
Notifications

Englishเคนเคฟเค‚เคฆเฅ€เคฎเคฐเคพเค เฅ€


      Forgot password?
Use app×