You can use any of the identifies listed on The IasT page wiThouT The need To proof. Any other identity must be proven on the paper!!!!!!! IF YOU USE ANY TRIG' IDENTITY OTHER THAN THE ONES LISTED ON THE LAST PAGE, YOU MUST SHOW THE PROOF, OTHERWISE YOUR SOLUTION IS NOT ACCEPTED!!! You can use any of the identities listed below without the need to proof. Any other identity must be proven on the paper! Reciprocal Identities sin csce COS 8 = sec 8 tan 8 = cot 8 csco= sec 8 = 1 sin 6 cos 8 cot = tan 8 Quotient Identities tan 0 = sine COS 8 cot COS 6 sing Pythagorean Identities sin 0 + cos*0 = 1 tan' 0 + 1 = sec2 0 1 + cot30 = csc 0 Negative Angle Identities sin(-0) = - sin 0 cos(-@) = cos 0 tan(-0) = -tan 0 csc(-9) = - csco sec(-0) = sec 0 cot(-0) = -cote3. The intensity of light passing through a lens can be found using the formula I = A. "L . C59\" 9 where I0 is the intensity of light coming in, I is the intensity of the light that emerges or goes out of the lens, and 6 is the angle between. I 1:]0 2 a) Find and simplify an equivalent expression for \"'3' 9. .in terms of I0 and cose. b) Suppose light passes through a polarized lens at angle 11/4 to the original lens. How much less intense than the original light will the light now be