Wednesday

September 17, 2014

September 17, 2014

Posted by **Kristien** on Saturday, February 23, 2013 at 7:43pm.

Can i just square root the left side??:O

- Trig identities:( -
**bobpursley**, Saturday, February 23, 2013 at 7:52pmI don't think it is an identity.

let A=90 deg

sin(360)-cos(360)=0-1

sin(180)-cos(180)=0+1

The sides are not equal.

- Trig identities:( -
**Kristien**, Saturday, February 23, 2013 at 8:17pm?? Im sorry i dont understand what u did but im sure tht this is an identity we have to prove tht the left side equals the right side:)

**Answer this Question**

**Related Questions**

Trig - How do you express sin4x as a trigonometric funcition of x using the ...

math/algebra - I have a triangle one side = 3 side 2 = square root5 - square ...

trig - CosA x cos2A + ((sin2A)^2)/2cosA

MathS triG - 1 .If tanA=1/3 and tanB=1/7 (both A and B are acute),calculate ...

maths Pls help trig - 1 .If tanA=1/3 and tanB=1/7 (both A and B are acute),...

trig maths - rewrite 7 sin2A – 5 sin A + cos2A = o to solve for A

further Mathematics - Let A=(cosA -sinA) (sinA cosA) show that A^2=(cos2A sin2A...

trig - Given that cos A = 5/13 and A and B are both acute angles, calculate the ...

trig - Prove: 1/cos2A+sin2A/cos2A=sinA+cosA/cosA-sinA

trig - Prove: 1/cos2A+sin2A/cos2A=sinA+cosA/cosA-sinA