Q. 4 C

# Evaluate the following :

2sin^{2}30°.tan60° – 3cos^{2}60°.sec^{2}30°

Answer :

We know that

tan (60^{o}) = √3

Now putting the values;

Rate this question :

How useful is this solution?

We strive to provide quality solutions. Please rate us to serve you better.

Related Videos

Champ Quiz | Trigonometric Identities33 mins

Trigonometric Identities33 mins

NCERT | Trigonometric Identities52 mins

Quiz | Task on Trigonometric Ratios46 mins

Algebraic Identities48 mins

Quiz | Practice Important Questions on Trigonometrical Identities46 mins

Quiz on Trigonometric Ratios31 mins

T- Ratios of Specified Angles58 mins

Trick to learn all Trigonometric Formulae28 mins

Testing the T- Ratios of Specified Angles57 mins

Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Expertsview all courses

Dedicated counsellor for each student

24X7 Doubt Resolution

Daily Report Card

Detailed Performance Evaluation

RELATED QUESTIONS :

If θ = 45°, find the value of

(i)

(ii) cos^{2} θ - sin^{2} θ

Find the numerical value of the following :

sin45°.cos45° – sin^{2}30°.

At a point A, 20 meters above the level of water in a lake, the angle of elevation of a cloud is 30°. The angle of depression of the reflection of the cloud in the lake, at A is 60°. Find the distance of the cloud from A.

Mathematics - Board PapersEvaluate each of the following:

RD Sharma - MathematicsIf , where and are acute angles, find the value of .

RD Sharma - MathematicsEvaluate the following :

cosec^{2}30°.tan^{2}45° – sec^{2}60°