Without using calculator or mathematical table, simplify 2tan60° + cos30°÷ sin60°
Answers
Answered by
mathhelper
You should memorize the ratio of sides of the standard 30-60-90 rightangled triangle. I would add to that the 45-45-90 triangle.
2tan60° + cos30°/sin60°
= 2√3 +(√3/2) / (√3/2)
= 2√3 + 1
2tan60° + cos30°/sin60°
= 2√3 +(√3/2) / (√3/2)
= 2√3 + 1
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