-->

Some Applications Of Trigonometry

Question

Evaluate:
tan² 30° + tan² 45° + cos² 60°

Solution

tan² 30° + tan² 45° + cos² 60°
$equals space open parentheses fraction numerator 1 over denominator square root of 3 end fraction close parentheses squared plus left parenthesis 1 right parenthesis squared plus open parentheses 1 half close parentheses squared space equals space 1 third plus 1 plus 1 fourth equals space fraction numerator 4 plus 12 plus 3 over denominator 12 end fraction equals 19 over 12.$

For Daily Free Study Material Join wiredfaculty

Some Applications Of Trigonometry

Evaluate:
tan² 30° + tan² 45° + cos² 60°

Some More Questions From Some Applications of Trigonometry Chapter

In ΔABC, right angled at B. AB = 24 cm, BC = 7 cm. Determine:
(i) sin A cos A,
(ii) sin C, cos C.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Phone Number

Email Address

Loaction

For Daily Free Study Material Join wiredfaculty

Some Applications Of Trigonometry

Evaluate:tan2 30° + tan2 45° + cos2 60°

Some More Questions From Some Applications of Trigonometry Chapter

In ΔABC, right angled at B. AB = 24 cm, BC = 7 cm. Determine:(i) sin A cos A,(ii) sin C, cos C.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Evaluate:
tan² 30° + tan² 45° + cos² 60°

In ΔABC, right angled at B. AB = 24 cm, BC = 7 cm. Determine:
(i) sin A cos A,
(ii) sin C, cos C.