Question

3 tan square 30 degree - 4upon 3 sin square 60 degree - cosec square 45 degree + 4/3 sin square 90 degree

Answer 1

Answer:

-2/3

Step-by-step explanation:

Put the values of the angles, solve the angles then take squares.

Tan 30 = 1/underoot 3

Sin 60 = underroot 3 / 2

As sin 45 = 1 / underroot 2

And cosec = 1/ sin

So cosec = underroot 2 (reciprocal of sin)

Sin 90 = 1