Posted by **ALISON** on Sunday, October 23, 2011 at 5:23pm.

1) Find an angle that makes the statement true: costheta =sin(3theta+10degrees)

2) Verify this proof:

sec(Pie -x)= -secx

Can someone show me how to solve for these. Very much appreciated!

## Answer This Question

## Related Questions

- Algebra II - In an induction proof of the statement 4+7+10+...+(3n-1)=n(3n+5)/2 ...
- Trigonometry - I have some trigonometric equations to do, but I'm pretty lost, ...
- math - 1)Find the third iterate x3 of f(x)=x2-4 for an initial value of x0=2 A)-...
- maths - Choose the two options which are true for all values of x 1) cos (x) = ...
- trig help much appreciated! :)) - 1. Find the complete exact solution of sin x...
- Trig - Verify the identity. (secx + tanx)/(secx - tanx) = (1 + 2sinx + sin(^2)x...
- solving trig. equations - tan(3x) + 1 = sec(3x) Thanks, pretend 3x equals x so ...
- trig - it says to verify the following identity, working only on one side: cotx+...
- Calculus - Integration - Hello! I really don't think I am understanding my calc ...
- trig - secx=5 use a graph to solve the following equation in the interval x is ...

More Related Questions