Saturday

April 19, 2014

April 19, 2014

Posted by **David** on Sunday, May 19, 2013 at 8:59am.

Show that tan=a/b

- math -
**MathMate**, Sunday, May 19, 2013 at 10:28ama^3=1/cos-cos = (1-cos^2)/cos=sin^2/cos

b^3=1/sin-sin = (1-sin^2)/sin=cos^2/sin

a^3/b^3=sin^2/cos * cos^2/sin=sin^3/cos^3

=>

a/b=sin/cos = tan

(Hope you understand your own notations.)

**Related Questions**

tigonometry - expres the following as sums and differences of sines or cosines ...

algebra - Can someone please help me do this problem? That would be great! ...

Math - Calculus - The identity below is significant because it relates 3 ...

trig - Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...

math - Can you please check my work. A particle is moving with the given data. ...

Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...

TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...

Precal - I do not understand how to do this problem ((sin^3 A + cos^3 A)/(sin A...

math - Prove that for all real values of a, b, t (theta): (a * cos t + b * sin t...

Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...