Saturday

October 25, 2014

October 25, 2014

Posted by **jaz** on Thursday, April 2, 2009 at 11:09am.

sin

cos

tan

csc

sec

cot

- pre calc -
**Reiny**, Thursday, April 2, 2009 at 11:19amdid you make a diagram?

you would have a right-angled triangle in the second quadrant with x=-2 and r=5

so

x^2 + y^2 = r^2

4 + y^2 = 25

y = ± √21

but we are in quadrant II, so y = +√21

now, knowing the trig rations in terms of x,y, and r, your question is easy

e.g. tan(angle) = y/x = - √21/2

sec(angle) = r/x = - 5/2

you do the rest.

**Answer this Question**

**Related Questions**

Trig - Find the exact values of the six trigonometric functions 0 if the ...

trig - FInd the exact value pf the 6 trig function of alpha Given: point (-2,-6...

math - Determine the values of sin, cos, tan, csc, sec and cot at (-3, -3) on ...

trig - Let be an angle in standard position and the point (a, b) be the point ...

math - trig - 1. Find csc A, cos A and tan A of an angle A whose terminal side ...

trig (pre-cal class) - Suppose è is an acute angle of a right triangle. For this...

trig - Find the values of the other five trigonometric functions for angle S. a...

trig - Find the values of the other five trigonometric functions for angle S. a...

Pre-Calc - Find the values of the trigonometric functions of è from the ...

trig - Ok so I have a right triangle with the hypothenuse = to 5, one side =3 ...