I WILL GIVE BRAINLIEST !! PLEASE HURRY IM TIMED

Mathematics

2 answers:

Sonbull [250]3 years ago

8 0

Answer:

alexs family by 10 Mph

Step-by-step explanation:

scZoUnD [109]3 years ago

5 0

Alex’s family by 10 miles per hour

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Anarel [89]

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Step-by-step explanation:

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3 years ago

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fgiga [73]

Answer:

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3 years ago

Verify which of the following are identities.

ch4aika [34]

Answer:

Step-by-step explanation:

Equation 1:

$1+\frac{\cos^{2} \theta}{\cot^{2} \theta(1-\sin^{2} \theta)}\\ \\ 1+\frac{\sin^{2} \theta}{\cos^{2} \theta} \\ \\ 1+\tan^{2} \theta \\ \\ \sec^{2} \theta$

Equation 2:

$15\cos \theta \left(\frac{1}{\cos \theta}-\frac{\cot \theta}{\csc \theta} \right) \\ \\ 15\cos \theta \left(\frac{1}{\cos \theta}-\frac{\cos \theta / \sin \theta}{1/\sin \theta} \right) \\ \\ 15\cos \theta \left(\frac{1}{\cos \theta}-\cos \theta \right) \\ \\ 15\cos \theta \left(\frac{1-\cos^{2} \theta}{\cos \theta} \right) \\ \\ 15(1-\cos^{2} \theta) \\ \\ 15\sin^{2} \theta$