Saturday

December 20, 2014

December 20, 2014

Posted by **Taylor** on Sunday, January 3, 2010 at 2:31pm.

1-sin^3x

and

sec^4x-2sec^2xtan^2x+tan^4x

- Trigonometry -
**bobpursley**, Sunday, January 3, 2010 at 2:48pmthe first is the difference of two cubes:

(1-a^3)=(1-a)(1+a+a^2)

from...

a3 – b3 = (a – b)(a2 + ab + b2)

the second is very similar to

(a^2-2ab+b^2).....

- Trigonometry -
**Taylor**, Sunday, January 3, 2010 at 3:44pmI'm not positive, but the answer to 1-sin^3 would be (1-sinx)(1+sinx+sin^2x)

**Answer this Question**

**Related Questions**

Trigonometry - How do you verify the equation is an identity? Tan^2x-tan^2y=sec^...

calculus (check my work please) - Not sure if it is right, I have check with the...

Math differentiation - 1. y = x^x 2. y = (sin^2xtan^4x)/(x^2+1)^2 3. y = x^(1/x...

Trigonometry - 1.Solve tan^2x + tan x – 1 = 0 for the principal value(s) to two ...

Integration - Intergrate ¡ì sec^3(x) dx could anybody please check this answer. ...

Trigonometry desperate help, clueless girl here - 2. solve cos 2x-3sin x cos 2x...

trig 26 - simplify to a constant or trig func. 1. sec ²u-tan ²u/cos ²v+sin ²v ...

trig - how do you start this equation i've been tryng it for 20min. sec^6x(...

trigonometry hlp me - 6.Prove that tan y cos^2 y + sin^2y/sin y = cos y + sin y...

Trigonometry - Find the exact value of tan(a-b) sin a = 4/5, -3pi/2<a<-pi...