Question

sin²75°-cos²45°= root3/4​

Answer 1

Answer:

sin²75°-cos²45°= root3/4

Step-by-step explanation:

sin²75°-cos²45°= root3/4sin²75°-cos²45°= root3/4

Answer 2

Answer:

Step-by-step explanation:

sin²75°-cos²45°= √3/4

We know that,

sin 75° = 1.8

cos 45° = 1/√2

∴ ( 1.8)² - (1 / √2)²

= 3.24 - 1 / 2

= 3.24 - 0.5

= 2.74

= √3 / 4

Hence Proved.

$\lim_{n \to \infty} a_n$