Math Is Fun Forum

Agnishom

Real Member

From: Riemann Sphere

Registered: 2011-01-29

Posts: 25,002

Website

More triging - Help Me :(

Find the answers in terms of m and n

1. If tan x + sin x = m and tan x - sin x = n, then m^2 - n^2 = ___

2. m = cos x / cos y and n = cos x / sin y then (m^2 + n^2)cos^2 y = ___

---

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

Bob

Administrator

Registered: 2010-06-20

Posts: 10,643

Re: More triging - Help Me :(

hi Agnishom,

(1)

I cannot see that this can be simplified further.

(2)

Again, that's as far as I can get. 

Bob

---

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob