please keep your hand writing clear ,and please do the question step by step .

thank you so much.

\f1+sin B 1+cosa e) = sec ap f) - = CSC a cos B+cos B sin B sin a + cos a sin a (sin a +cos a) 2 g) = seca + h) (1+tan a)2 - = seca + 2 sina COS a cos a 2 sin a Cosz x tan x sin x sin x-1 1) + sin x = csc x j) sin x CSC X COS X cot xPart B. Apply the Concepts Verify the following trigonometric identities. a) cos B tan? B = 1 - cos B b) sin2 B cot2 B = 1 - sin2 B c) tana + cota = seca csca d) cot bcos b = cscb - sin b4. Perform the following operations. a) (tan x + sec x) (tanx - sec x) b) (sin2 0 + cos2 0)2 1 1 sin a 1+cos a C) + d) + 1+sin a 1-sin a 1+cos a sin a 5. Rewrite the expressions without fractions. cos a a) 1-sin a cot - a b) csco+1