Posted by **lindsay** on Saturday, April 21, 2012 at 5:22pm.

express 3 cos x -2 sin x in th eform R cos (x + a) and hence write down the maximum and minimum values of 3 cos x - 2 sin x.

## Answer this Question

## Related Questions

- tigonometry - expres the following as sums and differences of sines or cosines ...
- TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...
- Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...
- algebra - Can someone please help me do this problem? That would be great! ...
- trig - Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...
- Math - Calculus - The identity below is significant because it relates 3 ...
- math - Prove that for all real values of a, b, t (theta): (a * cos t + b * sin t...
- pre-cal - Simplify the given expression........? (2sin2x)(cos6x) sin 2x and cos ...
- Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...
- calculus - Differentiate. y= (cos x)^x u= cos x du= -sin x dx ln y = ln(cos x)^x...