3 years ago

Find sin A and sec B given a = 2, b = 11.

Mathematics

1 answer:

ruslelena [56]3 years ago

7 0

Hello there, have a nice day

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Troyanec [42]

Answer:

47 and the median

Step-by-step explanation:

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3 years ago

How to find the Perimeter?

SOVA2 [1]

Answer:

8+2 $\sqrt{20\\}\\$

Step-by-step explanation:

2+2+2+2+ $\sqrt{20\\}\\$ + $\sqrt{20\\}\\$ =8+2 $\sqrt{20\\}\\$

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3 years ago

TanA+tanB+tanAtanB=1 If A+B=45 degree

djyliett [7]

Answer:

See below

Step-by-step explanation:

$\tan A+\tan B + \tan A.\tan B = 1\\\\ \implies \: \tan A + \tan B = 1 - \tan A.\tan B \\ \\ \implies \: \frac{\tan A + \tan B}{ 1 - \tan A.\tan B } = 1\\ \\ \implies \: \tan (A + B) = 1 \\ \\ \implies \: \tan (A + B) =\tan 45 \degree \\ \\ \implies \: A + B = 45 \degree \\ \\ thus \: proved$