Question

tan2 45-cos2 30 =x sin45° cos 45° then x =​

Answer 1

Answer:

Tan²45 - cos²30 = xsin45.cos45

we know,

tan45 = 1

cos30 = √3/2

sin45 = 1/√2

cos45 = 1/√2

now,

(1)² - (√3/2)² = x(1/√2)(1/√2)

1 -3/4 = x/2

1/4 = x/2

x = 1/2