Question

cos ² 45° + sin ² 30 ° , see no spams ❌❌❌​

Answer 1

Answer:

0.75

Step-by-step explanation:

As per the equation,

we have been provided the equation

cos²45 + sin²30

As we know that according to trigonometric identity the value of

cos²45 = 1/√2

sin²30 = 0.5

Now, on putting this value in equation

cos²45 + sin²30 and further solving , we get

cos²45 + sin²30

= (1/√2)²+(0.5)²

= 1/2+ 0.25

= 0.5+0.25

= 0.75

Hence, the required value is 0.75