Question

cos²45°+sin²30°, Find the values of it

Answer 1

Hi there .... here is the solution

1/2 + 1/4 (values of sine and cos at respective angles)

3/4 Answer

Answer 2

Answer:

0.75

Step-by-step explanation:

As per the question,

We have been provided the equation cos²45°+sin²30°.

As we know that according to trigonometric identity, the value of

cos45° = $\frac{1}{\sqrt{2}}$

sin30° = 0.5

Now,

On putting these value in equation cos²45°+sin²30° and further solving, we get,

cos²45°+sin²30°

$= (\frac{1}{\sqrt{2}})^{2} + (0.5)^{2}$

$= \frac{1}{2} + 0.25$

$= 0.5 + 0.25$

$= 0.75$

Hence, the required value = 0.75.