— Philoid

Q1 of 186 Page 359

Consider + 3 tan² 56° tan² 34°

= + 3 tan² 56° tan² (90° – 56°)

= + 3 tan² 56° cot² 56°

= (1/1) + 3(1)

= 1 + 3

= 4

(cosec θ – cot θ)² = ?

(sec A + tan A)(1 – sin A) = ?

The value of (sin² 30° cos² 45° + 4 tan² 30°+ (1/2) sin² 90^o + (1/8)cot² 60^o) = ?

If cos A + cos² A = 1 then (sin²A + sin⁴A) = ?