Question

sin30 square + cos60square - tansquare60 / sin60square + cos60square

Answer 1

Answer :

[(1/2)² + (1/2)² - (√3)²]/[(√3/2)² + (√3/2)²]

⇒ [1/4 + 1/4 - 3]/[3/4 + 3/4]

⇒[ 1 + 1 - 3/4]/[3 + 3/4]

⇒ [-1/4]/[6/4]

⇒ -6

Answer 2

Answer:

$\frac{-5}{2}$

Explanation:

(Sin²30°+Cos²60°-Tan²60°)/Sin²60°+Cos²60°

[(1/2)²+(1/2)²-(√3)²]/(√3/2)²+(1/2)²

[(1/4)+(1/4)-(3)]/(3/4)+(1/4)

[(1+1-12)/4]/(3+1)/4

[(-10)/4]/(4/4)

$\frac{(-10)}{4}$

$\frac{-5}{2}$