Question

3 tan square ( 2x - 20°) = 1​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

$\tan^{2} (2x - 20) = 1 \div 3$

$\tan(2x - 20) = + - 1 \div \sqrt{3}$

tan(2x-20°) =±tan30°

2x-20°=±30°

.

at 30°

.

2x=30°+20°

2x=50°

x=25°

.

at x= -30°

2x-20°=-30°

2x=-30°+20°

2x=-10°

x=-5°