Wednesday

January 28, 2015

January 28, 2015

Posted by **Jacob** on Tuesday, November 15, 2011 at 10:40pm.

- Pre Calc -
**Reiny**, Tuesday, November 15, 2011 at 10:57pm(cos-1 (4/5))

means : find the angle Ø so that cos Ø = 4/5

so clearly secØ = 5/4

**Answer this Question**

**Related Questions**

pre-calc help !!!!!!! - #1 cos x+sec x=2 #2 (1+tan x)^2= 2 tan x+2 #3 cos^2x-sin...

Pre-Calc - Prove: 2 - sec^x / 1+ tan ^x = cos 2x

pre-calc - cos x+sec x=2 if you could please show all work

math - How would you establish this identity: (1+sec(beta))/(sec(beta))=(sin^2(...

Pre-Calc/Math - Prove identity: (sec x/csc x) + (sin x/cos x)=(2/cot x)

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

trig pre calc - cos x (sec x +cos x csc2x)=csc2x

Pre-Calc - How would you prove this identity? (sin^3(x)+cos^3(x))÷(1-2cos^2(x...

Pre-calc - Verify this identity. How would you prove it (sin^3(x)+cos^3(x))÷(1-...

math - Determine all the possible values of x where 0 deg is more than or equal ...