Question

5sin2 30+cos2 45-4tan2 30/3sin30×cos30×tan30​

Answer 1

Explanation:

5(1/2)² + (1/√2)² - 4(1/√3)² / 3(1/2) * √3/2 * 1/√3

5*(1/4) + 1/2 - 4(1/3) / (3/2)* (1/2)

(5/4 + 1/2 - 4/3) / (3/4)

(15 + 6 - 16)/12 / (3/4)

(5/12)/(3/4)

(5/12) * (4/3)

5/9

Answer 2

Answer:

5(1/2)² + (1/√2)² - 4(1/√3)² / 3(1/2) * √3/2 * 1/√3

5*(1/4) + 1/2 - 4(1/3) / (3/2)* (1/2)

(5/4 + 1/2 - 4/3) / (3/4)

(15 + 6 - 16)/12 / (3/4)

(5/12)/(3/4)

(5/12) * (4/3)

5/9

Explanation: