Question

if theta is equal to one by three then find the value of cos theta​

Answer 1

Answer:

Here, θ=−30

o

,

∴cosθ=cos(−30

o

)=cos30

o

=

2

3

[∵cos(−θ)=cosθ]

Video Explanation

Solution To Question ID 597806

play-icon

Was this answer helpful?

upvote

13

downvote

0

SIMILAR QUESTIONS

star-struck

Evaluate :

sec(9

0

˚

−θ)cos(9

0

˚

−θ)tan(9

0

˚

−θ)

sin(9

0

˚

−θ)cosec(9

0

˚

−θ)cotθ

+

tan1

0

˚

tan3

5

˚

tan5

5

˚

tan8

0

˚

sin

2

6

5

˚

+sin

2

2

5

˚

+2cos

2

3

2

˚

cosec

2

5

8

˚

−cos

2

4

5

˚

Medium

View solution

>

tanθ=

21

20

,showthat

1+sinθ+cosθ

1−sinθ+cosθ

=

7

3

Medium