I know this is below most of those that peruse these forums, but I've been giving myself an ulcer trying to figure these silly things out.(adsbygoogle = window.adsbygoogle || []).push({});

The first problem starts out as

(1-sin^2(x))(1+tan^2(x))=1

and I've got it down to

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

but from there I've got no idea.

The second was

(1+cot(x))/csc(x)=(1+tan(x))/sec(x)

and I've got the right side down to

(cos/1)+(1/csc)

but how that becomes (1+cot(x))/csc(x)is beyond me.

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Trouble in pre-cal, proofs

Loading...

Similar Threads - Trouble proofs | Date |
---|---|

I A troubling definite integral | Aug 8, 2016 |

B Trouble converting definite integrals to Riemann's and back | Apr 21, 2016 |

Trouble with basic algebra in Calculus 1. | Sep 23, 2015 |

Trouble understanding the proof of fundamental theorem of algebra using | Oct 26, 2011 |

Trouble with induction proofs | Mar 6, 2008 |

**Physics Forums - The Fusion of Science and Community**