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Mathematics 24 Online
OpenStudy (anonymous):

Given: cos x= - 12/13, and sin x is negative. 40. In what quadrant is x located? 41. What is the value of sin x? tan x csc x sec x cot x ???

OpenStudy (ash2326):

@Pamelaa23 do you know in which quadrant cos is negative?

OpenStudy (ash2326):

*sorry quadrants

OpenStudy (anonymous):

Im not sure. All this cos, tan, csc is new to me.

OpenStudy (ash2326):

Okay, I'll explain you:D

OpenStudy (anonymous):

OpenStudy (anonymous):

I know that Q1 is top right, Q2 is top leaf, Q3 is bottom left, and Q4 is bottom right.

OpenStudy (anonymous):

You should visualize sin x as the y-coordinate and cos x as the x-coordinate

OpenStudy (anonymous):

So in Q1, whts the signs of the x and y coords?

OpenStudy (anonymous):

Pamela?

OpenStudy (ash2326):

|dw:1341165086675:dw| A=All are positive in Q1 S=only Sine and Cosec are positive in Q2 T=only Tan and Cot ar positive in Q3 C= only Cos and Sec are positive in Q4

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