Without using a calculator, compute the sine, cosine, and tangent of 330∘ by using the reference angle.

cos

300

=

1

2

sin

300

=

−

√

3

2

tan

300

=

−

4

√

3

3

Explanation:

Use trig table of special arcs and unit circle -->

cos

300

=

cos

(

−

60

+

360

)

=

cos

(

−

60

)

=

cos

(

60

)

=

1

2

sin

300

=

sin

(

−

60

+

360

)

=

sin

(

−

60

)

=

−

sin

60

=

−

√

3

2

tan

300

=

sin

cos

=

(

−

2

√

3

)

(

2

1

)

=

−

4

√

3

=

−

4

√

3

3

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

answer:   rotate 270° clockwise about (7, 1) and reflect across the line x = 7

step-by-step explanation:

because i took test