Question

tan A - 2 cos A tan A + 2cos A- 1= 0​

Answer 1

Answer:

$(\tan(a) - 1 )- 2cosa(tana - 1) = 0$

$( \tan(a) - 1)(1 - 2 \cos(a) ) = 0$

$\tan(a) = 1 \: \: so \: a = 45$

$1 - 2 \cos(a) = 0$

$\cos(a) = \frac{1}{2}$

$a = 60$

Answer 2

Answer:

$\huge\bigstar\huge\tt\underline\red{ᴀɴsᴡᴇʀ }\bigstar$

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