Monday

December 22, 2014

December 22, 2014

Posted by **Colt** on Thursday, October 4, 2012 at 2:34am.

- trig -
**Reiny**, Thursday, October 4, 2012 at 8:36amAre we solving for Ø ?

tan^2 Ø +6 = sec^2 Ø + 5

sin^2 Ø/cos^2 Ø + 6 = 1/cos^2 Ø + 5

times cos^2 Ø

sin^2 Ø + 6cos^2 Ø = 1 + 5 cos^2 Ø

sin^2 Ø + cos^2 Ø = 1

1 = 1

ahh, it was an identity, thus true for all values of Ø, except Ø = 90° , 270° , 450° ..... or 90° + 180k , where k is an integer.

**Answer this Question**

**Related Questions**

Math - sin theta = 8/17 and theta is in the second quadrant. Find sin(2theta),...

Calculus - What is the integral of 1-tan^2theta from 0 to pi/3? Using the ...

Math - Prove: [(tan^2theta+1)(cos^2theta-1)]=1-sec^2theta

Math - 1)Find cos theta if sin theta=3/5 and 90 degrees<theta<180 degrees...

math - There are no typos and no work b/c I don't know how to do them. Thanks. 1...

Math - There are no typos and no work b/c I don't know how to do them. Thanks. 1...

Math - sin theta = 8/17 and theta is in the second quadrant. Find sin(2theta),...

trig - establish identity 5csc^2theta-3cot^2theta=2csc^2theta+3

trig - Write each identity expression in terms of:1. cos theta= a. sin^2theta...

maths - if cot theta =7/8 , evaluate (1+sin^2theta)(1-sin^2theta)/(1+cost^2theta...