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January 30, 2015

January 30, 2015

Posted by **Alycia** on Thursday, November 1, 2012 at 9:42pm.

Problem 1. (1-tanx) = (cosx-sinx)/cosx

Problem 2. (secx+tanx)/(cscx-cotx) - (secx-tanx)/(cscx+cotx) = 2(secx+cscx)

- Math -
**bobpursley**, Thursday, November 1, 2012 at 9:49pma. multipy the left side by cos/cos, you get

(cos-sin)/cos

b. on the left, get a common denominator

(csc^2-ctn^2)

then combine both terms into one fraction. It reduces rapidaly. If you get stuck convert all terms to sin, cos)

- Math -
**Alycia**, Thursday, November 1, 2012 at 9:53pmThanks! I feel stupid now that I didn't see tht before, but I appreciate your help

- Math -
**Lulu**, Monday, April 22, 2013 at 6:53pmA pizza restaurant sold 275 veggie pizzas. It sold 71 more pepperoni pizzas than veggie pizzas. If each pizza cost $9,how much did the restaurant earn?

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