मराठी

State whether the following are true or false. Justify your answer. The value of tan A is always less than 1.

Advertisements
Advertisements

प्रश्न

State whether the following are true or false. Justify your answer.

The value of tan A is always less than 1.

पर्याय

  • True

  • False

MCQ
चूक किंवा बरोबर
Advertisements

उत्तर

This statement is False.

Explanation:

Consider a ΔABC, right-angled at B.

tan A = `("Side opposite to ∠A")/("Side adjacent to ∠A")`

= `12/5`

But `12/5 > 1`

∴ tan A > 1

So, tan A < 1 is not always true.

Hence, the given statement is false.

A tangent of an angle is the ratio of sides other than hypotenuse, which may be equal or unequal to each other.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Introduction to Trigonometry - EXERCISE 8.1 [पृष्ठ १२१]

APPEARS IN

एनसीईआरटी Mathematics [English] Class 10
पाठ 8 Introduction to Trigonometry
EXERCISE 8.1 | Q 11. (i) | पृष्ठ १२१
आर.डी. शर्मा Mathematics [English] Class 10
पाठ 10 Trigonometric Ratios
Exercise 10.1 | Q 36.1 | पृष्ठ २६

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

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


If ∠A and ∠B are acute angles such that cos A = cos B, then show that ∠A = ∠B.


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

State whether the following are true or false. Justify your answer.

sin θ = `4/3`, for some angle θ.


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

`sin A = 2/3`


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

`sin theta = 11/5`


If `cos θ = 12/13`, show that `sin θ (1 - tan θ) = 35/156`.


Evaluate the following

tan2 30° + tan2 60° + tan45°


Evaluate the following:

(cosec2 45° sec2 30°)(sin2 30° + 4 cot2 45° − sec2 60°)


Evaluate the Following

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


Evaluate the Following

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

`2 sin  x/2 = 1`


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


If sin A = `1/2`, then the value of cot A is ______.


A ladder rests against a vertical wall at an inclination α to the horizontal. Its foot is pulled away from the wall through a distance p so that its upper end slides a distance q down the wall and then the ladder makes an angle β to the horizontal. Show that `p/q = (cos β - cos α)/(sin α - sin β)`


In the given figure, if sin θ = `7/13`, which angle will be θ?


If sec θ = `1/2`, what will be the value of cos θ?


`sqrt(3)` cos2A + `sqrt(3)` sin2A is equal to ______.


Let tan9° = `(1 - sqrt((sqrt(5)k)/m))k` where k = `sqrt(5) + 1` then m is equal to  ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×