Question

Find Tan 20° Tan 25° Tan 70° Tan 65° Tan 45°

Answer 1

Answer:

what is Tan ??????????????????

Answer 2

$\tan(20) \times\:tan(25) \times \tan(90 - 20) \times \tan(90 - 25) \times \tan(45)$

$\tan(20) \times \tan(25) \times \cot(20) \times \cot(25) \times 1$

$\tan(20) \times \tan(25) \times 1 \div \tan(20) \times 1 \div \tan(25) \times 1$

$1 \times 1 \times 1 = 1$