Tuesday

January 27, 2015

January 27, 2015

Posted by **jake** on Monday, November 10, 2008 at 2:01am.

cos3x = 4[cos(x) -cos(pi/6)][(cos(x) -cos(pi/2)][(cos(x) -cos(5pi/6)]

**Answer this Question**

**Related Questions**

maths - Find the roots of z^6 + 1 and hence resolve z^6 + 1into read quadratic ...

calculus - Differentiate. y= (cos x)^x u= cos x du= -sin x dx ln y = ln(cos x)^x...

Calc. - Differentiate. y= (cos x)^x u= cos x du= -sin x dx ln y = ln(cos x)^x ln...

math - Determine exact value of cos(cos^-1(19 pi)). is this the cos (a+b)= cos a...

pre-cal - Simplify the given expression........? (2sin2x)(cos6x) sin 2x and cos ...

Math - Can someone please check my answers! 2. Find value of cos(255degrees)cos(...

Math - Solving Trig Equations - What am I doing wrong? Equation: sin2x = 2cos2x ...

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^...

math - Find the exact value of cos 300 degrees. thanks guys cos 300 = 1/2 = 0....