Monday

March 30, 2015

March 30, 2015

Posted by **Adc** on Thursday, March 29, 2012 at 3:17pm.

cos x -cox x/1-tan x = sin x cos x/sin x -cos x

- calculus -
**Reiny**, Thursday, March 29, 2012 at 4:10pmLS = cosx = cosx/(1 - sinx/cosx))

= cosx - cosx/(cosx - sinx)/cosx) )

= cosx - cosx (cosx)/(cosx - sinx)

= cosx + cos^2 x /(sinx - cosx)

= (sinxcosx - cos^2 x + cos^2 x)/(sinx - cosx)

= sinxcosx/(sinx - cosx)

= RS

**Answer this Question**

**Related Questions**

Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...

Math - Calculus - The identity below is significant because it relates 3 ...

calculus - Verify the identity: cos x -cox x/1-tan x = sin x cos x/sin x -cos x

Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...

precalculus - For each of the following determine whether or not it is an ...

trig - it says to verify the following identity, working only on one side: cotx+...

TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...

Math - Prove each identity: a) 1-cos^2x=tan^2xcos^2x b) cos^2x + 2sin^2x-1 = sin...

tigonometry - expres the following as sums and differences of sines or cosines ...

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