Question

HELP PLEASE :)

Which of the following is true? (5 points)

Tangent is positive in Quadrant I.
Sine is negative in Quadrant II.
Cosine is positive in Quadrant III.
Sine is positive in Quadrant IV

Answer 1

all of them are + in quad 1, only sin is + in quad 2, only tan is + in quad 3 and only cos is + in quad 4

Answer 2

Answer: First option is correct.

Explanation:

Since we know that

1) In Ist quadrant, All trigonometric is positive.

2) In IInd quadrant, only Sine and Cosec are positive, that means

Cosine, Secant and Tangent, Cotangent are negative.

3) In III rd quadrant, only Tangent and Cotangent are positive, i.e.

Cosine, Secant and Sine, Cosine are negative.

4) In IV th quadrant, Only Cosine and Secant are positive, i.e.

Tangent, Cotangent and Sine, Cosine are negative.

Hence, First option is correct.