Q. 15.0( 1 Vote )

# The value of sin^{2}60° + cos^{2}60° is equal to

A. sin^{2}45° + cos^{2}45°

B. tan^{2}45° + cot^{2}45°

C. sec^{2}90°

D. 0

Answer :

We know,

∴

⇒ .

Comparing the above result with the given options, we find that

A. is the correct option because,

⇒

B. is incorrect because,

⇒

C. is incorrect because,

is not defined.

⇒

D. is incorrect because,

Rate this question :

How useful is this solution?

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

Related Videos

Foundation | Trigonometic Ratio38 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 :

The value of is

Tamilnadu Board Math Term-IIShow that

Tamilnadu Board Math Term-II

Show that

sin (90° – θ)tan θ = sin θ

Tamilnadu Board Math Term-IIShow that

Tamilnadu Board Math Term-II

Show that

sin (90° – θ)tan θ = sin θ

Tamilnadu Board Math Term-IIShow that

cos 20° cos 70° – sin 70° sin 20° = 0

Tamilnadu Board Math Term-IIShow that

cos 20° cos 70° – sin 70° sin 20° = 0

Tamilnadu Board Math Term-IIShow that

cos 48° – sin 42° = 0

Tamilnadu Board Math Term-IIShow that

cos 48° – sin 42° = 0

Tamilnadu Board Math Term-II