Friday

January 30, 2015

January 30, 2015

Posted by **Jin** on Thursday, August 19, 2010 at 8:19pm.

secx(tanx + tan^2x- sec^2x)

simplified to

sec x (tanx -1)?

- math -
**Reiny**, Thursday, August 19, 2010 at 8:51pmyou should have come across the identity

sec^2x = tan^2x + 1

(by dividing each term of sin^2 + cos^2x = 1 by cos^2x )

sub back in , and you got it

**Answer this Question**

**Related Questions**

calculus - find dy/dx y=ln (secx + tanx) Let u= secx + tan x dy/dx= 1/u * du/dx ...

Pre-Cal - Perform the addition or subtraction. tanx - sec^2x/tanx tan^2(x)/tan(x...

Calculus - Int tanx sec^2x dx can be taken as (by putting it in form of Int xdx...

Calculus - Integration - Hello! I really don't think I am understanding my calc ...

Calc - Hello im trying to integrate tan^3 dx i have solved out the whole thing ...

Calc - Hello im trying to integrate tan^3 dx i have solved out the whole thing ...

Calculus - find the derivative of f(x)=tanx-4/secx I used the quotient rule and ...

calculus - Did I do this problem right? Find the first and second derative-...

Trigonometry - Given that a^2+b^2=2 and that (a/b)= tan(45degee+x), find a and b...

Trigo - Given that a^2+b^2=2 and that (a/b)= tan(45degee+x), find a and b in ...