If sin 115 degrees≈ 0.91 and cos 115 degrees = -0.42, then sin -115 = and cos -115 degrees =

sin -115 = -0.91, cos -115 = -0.42

Step-by-step explanation:

i dont get the question

step-by-step explanation:

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: