Saturday

December 20, 2014

December 20, 2014

Posted by **Andres** on Sunday, August 28, 2011 at 6:49pm.

I just need help in how to start it.

- Trigonometry -
**Mgraph**, Sunday, August 28, 2011 at 7:11pm8sin^2+2cos^2=8sin^2+2(1-sin^2)=>

a=6 & b=2

- Trigonometry -
**Anonymous**, Sunday, August 28, 2011 at 7:30pm8 sin^2(theta) + 2 cos^2(theta) = 6 sin^2(theta) + 2 [ sin^2(theta) + 2 cos^2(theta) ] =

6 sin^2(theta) + 2 [ sin^2(theta) + cos^2(theta) ]

Remark:

sin^2(theta) + cos^2(theta) = 1

6 sin^2(theta) + 2 [ sin^2(theta) + cos^2(theta) ] = 6 sin^2(theta) + 2 * 1 =

6 sin^2(theta) + 2

8 sin^2(theta) + 2 cos^2(theta) = 6 sin^2(theta) + 2 =

6 sin^2(theta) + 2 = a sin^2(theta) + b

Obviously:

a = 6

b = 2

- Trigonometry -
**Anonymous**, Sunday, August 28, 2011 at 7:32pm8 sin^2(theta) + 2 cos^2(theta) = 6 sin^2(theta) + 2 sin^2(theta) + 2 cos^2(theta) = 6 sin^2(theta) + 2 [ sin^2(theta) + cos^2(theta) ]

- Trigonometry -
**Andres**, Sunday, August 28, 2011 at 8:12pmthanks

**Answer this Question**

**Related Questions**

Trigonometry - determine real numbers a and b so that the expression 8sin^2(...

Trig - Which expression equivalent to: cos(theta + pi/2). A)cos theta B)-cos ...

Trigonometry - I am having problems with proving identities that has a number ...

math - knowing that 2(theta) can be written as theta + theta, find the ...

I dont think drawing a picture will help me drwls - Which expression is ...

Trigonometry - State the amplitude of the following functions: a) y = cos theta ...

Trig - Solve the following interval 0<_ (less than or equal to)0(Theta)<...

Calculus - I wanted to confirm that I solved these problems correctly (we had to...

Trigonometry - Thank you STEVE!!!!! Suppose that Cos (theta) = 1/square root 2 ...

Pre Cal - 2cos 4theta + 1 = 0 i know how to find the degrees (the last step of ...