मराठी

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

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 १८१]

APPEARS IN

एनसीईआरटी Mathematics [English] Class 10
पाठ 8 Introduction to Trigonometry
Exercise 8.1 | Q 11.1 | पृष्ठ १८१
आरडी 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 cot θ =` 7/8` evaluate `((1+sin θ )(1-sin θ))/((1+cos θ)(1-cos θ))`


If 4 tan θ = 3, evaluate `((4sin theta - cos theta + 1)/(4sin theta + cos theta - 1))`


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.

`cos A = 4/5`


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

`cos theta = 7/25`


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

`sec theta = 13/5`


If `sec θ = 13/5`, show that `(2 sin θ - 3 cos θ)/(4 sin θ - 9 cos θ) = 3`.


if `cos theta = 3/5`, find the value of `(sin theta - 1/(tan theta))/(2 tan theta)`


if `sin theta = 3/4`  prove that `sqrt(cosec^2 theta - cot)/(sec^2 theta - 1) = sqrt7/3`


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

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


Find the value of x in each of the following :

cos x = cos 60º cos 30º + sin 60º sin 30º


If sin (A − B) = sin A cos B − cos A sin B and cos (A − B) = cos A cos B + sin A sin B, find the values of sin 15° and cos 15°.


If A and (2A – 45°) are acute angles such that sin A = cos (2A – 45°), then tan A is equal to ______.


If cos(α + β) = `(3/5)`, sin(α – β) = `5/13` and 0 < α, β < `π/4`, then tan (2α) is equal to ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×