## Help me quick please! need to turn in tom!

Trigonometric ratios and functions, the unit circle, inverse trig functions, identities, trig graphs, etc.

### Help me quick please! need to turn in tom!

Solve each equation for exact solutions, where possible over [0,2pi) for x and [0,360] for theta. If rounding is necessary, round degrees to the nearest tenth and round radians to the nearest 4 decimal places. Be sure to check for extraneous solutions of necessary.

Solve for each problem using the instructions, please show me your work since i need that as a part of my answer. Thank you SO MUCH!

1. cos^2theta-sin^2theta=0

3.4cos^2(x/2)-3=0

4.tan2theta-sec2theta=2

5. Solve for all exact radian solutions. Write answers using the least possible non-negative angle measure.

hello123

Posts: 1
Joined: Thu May 09, 2013 5:14 am

### Re: Help me quick please! need to turn in tom!

hello123 wrote:[b]Solve each equation for exact solutions, where possible over [0,2pi) for x and [0,360] for theta. If rounding is necessary, round degrees to the nearest tenth and round radians to the nearest 4 decimal places. Be sure to check for extraneous solutions of necessary.

Solve for each problem using the instructions, please show me your work since i need that as a part of my answer. Thank you SO MUCH!

1. cos^2theta-sin^2theta=0

3.4cos^2(x/2)-3=0

4.tan2theta-sec2theta=2

5. Solve for all exact radian solutions. Write answers using the least possible non-negative angle measure.

Use the pythagorean identity for question #1. $cos^2(\theta)+sin^2(\theta)=1$
$sin^2(\theta)=1-cos^2(\theta)$

You can rewrite the given equation as $cos^2(\theta)-(1-cos^2(\theta))=0$
jg.allinsymbols

Posts: 75
Joined: Sat Dec 29, 2012 2:42 am

hello123 wrote:Solve for each problem using the instructions, please show me your work since i need that as a part of my answer.

Sorry, but this isn't a "we do your homework for free so you can cheat" kind of place. There are those kinds of places, but many (most?) require payment. Since many of those are fraudulent (cheating attracts cheaters), use a credit card with a very low credit limit, so your parents won't lose much when you get scammed.

stapel_eliz

Posts: 1797
Joined: Mon Dec 08, 2008 4:22 pm