Thursday

January 29, 2015

January 29, 2015

Posted by **Alycia** on Thursday, November 1, 2012 at 4:19pm.

Problem 1. (secx/cosx)-(cscx/sinx)=tan^2x-cot^2x

Problem 2. secx+cscx=(1+tanx)/sinx

- Pre-Cal -
**Reiny**, Thursday, November 1, 2012 at 5:55pm1.

LS = (1/cosx) / cosx - (1/sinx) /sinx

= 1/cos^2 x - 1/(sin^2 x)

= (sin^2x + cos^2x)/cos^2x - (sin^2x + cos^2x)/sin^2x

= sin^2x/cos^2x + cos^2x/cos^2x - sin^2x/sin^2x - cos^2x/sin^2x

= tan^2x + 1 - 1 - cot^2x

= tan^2x - cot^2x

= RS

2. RS = (1+tanx)/sinx

= 1/sinx + tanx/sinx

= cscx + (sinx/cosx) /sinx

= cscx + 1/cosx

= cscx + secx

= LS

**Answer this Question**

**Related Questions**

Maths - If cosec A – sin A=a3 , sec A – cos A =b3 , prove that a2 b2 (a2 + b2)=1...

Pre Cal - 6-x=2x+9 If you are to solve the equation for x, first try to get the ...

Pre-Algebra - HOW DO I DO THIS 5x+(-20)=-60 2-2x=8 I can only assume this is two...

algebra - 1 1 7 -y - -= - 2 8 8 please help me! It isn't clear to me what this ...

math - how do you isolate a variable? my teacher gave us questions and we are ...

algebra - I'm really confused on how to do a few questions. i am supposed to ...

math--pre alg - not sure i did right 3(f+2)+9=13+5f 3f+6+9 = 13+5f +9 3F+15 = 12...

algebra - im not to good at algebra so here goes im supposed to multiply 5.(3.2...

algerbra 1 - what is the answer to 5x-16=14-5x Just giving you the answer is not...

Calculus - i was just wondering if the limit of a funtion exists as it ...