8. Prove that: sin20 1 - cos20 (a) = tan0 (b) = cote 1-cos20 sin20 sin20 (c) tane = (d) 1 - cos20 = tan20 1 + cos20 1 + cos20 (e) sin20 = 2cote (f) 1 - sin20 1 - tane cot20 + 1 cos20 1 +tan (g) cos20 1 - tane 1 + sin20 (h) cose cose 1+tane cose - sine (i) 1 + sin2A cose + s sinA + cosA COS2A COSA - sinA (j) cote - tane cote + tan = cos20 (k) tan20+ sín20 4tane 1 - tan¹0 (1) cose - sine cose + sine = sec20​