Right triangle FHG is shown. The sine of angle F is 0.53. What is the cosine of Angle h ?

Given:

Given that FGH is a right triangle. The sine of angle F is 0.53.

We need to determine the cosine of angle H.

Cosine of angle H:

Given that the sine of angle F is 0.53

This can be written as,

Applying the trigonometric ratio, we have;

----- (1)

Now, we shall determine the value of cosine of angle H.

Let us apply the trigonometric ratio , we get;

----- (2)

Substituting the value from equation (1) in equation (2), we get;

Thus, the cosine of angle H is 0.53

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: