3 years ago

Use the signed numbers to solve.

Mathematics

1 answer:

DaniilM [7]3 years ago

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-850 feet, -1200+800-450, Assuming that it started at 0

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Simplify 455 degrees

stealth61 [152]

Answer:

Step-by-step explanation:

(-455)-(-233)+(234)

-455+233+234

(233+234)-455

467-455

12(answer)

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4 years ago

Prove that 1/sin^2A -1/tan^2A= 1

Vika [28.1K]

Answer:

Step-by-step explanation:

$LHS =\dfrac{1}{Sin^{2} \ A }-\dfrac{1}{Tan^{2} \ A }\\\\\\ = \dfrac{1}{sin^{2} \ A}- \dfrac{1}{\dfrac{Sin^{2} \ A}{Cos^{2} \ A}}\\\\\\= \dfrac{1}{sin^{2} \ A } - \dfrac{Cos^{2} \ A}{Sin^{2} \ A}\\\\\\= \dfrac{1-Cos^{2} \ A}{Sin^{2} \ A}\\\\\\= \dfrac{Sin^{2} \ A}{Sin^{2} \ A}\\\\\\= 1 = \ RHS$