simplify:
(tan 46°/cot 44°)²+2tan18° tan 72° (cot 30°)²
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Answer:
7
Step-by-step explanation:
(tan 46°/cot 44°)²+ 2tan18° tan 72°(cot 30°)²
(tan (90°-44°)/cot 44°)² + 2tan 18° tan(90°-18°) (cot 30°)²[tan(90-theta) =cot theta]
(cot 44°/cot44°)²+ 2tan 18°cot18°(cot 30°)²[ cot 30° =√3]
(1)² + 2*1(√3)²
1+2*3
1+6=7
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