33 sin 7 467 137 tan 8. 197 sin + cos cos +tan + cot cot 1. If 7 8 Where a and b are in their lowest form, then (a + b) equal to (A) 17 (B) 20 (C) 23 (D)None of these sin 2 tan+ . -1 |+cos( tan2/2) is 2. The value of 14 14 13 12 1) 15 2) 15 3) 12 4) 13 tan (sec" 3)+ cot (cos ec" 4) s 3. The value of 1) 20 2) 21 3) 23 4) 25 -1 tan x = sin (2 tan'2), y = sin If 3) then 4. 1) x = 1-y 2) x? = 1-y 3) x? = 1 +y 4) y = 1-x sin (cot"(cos(tan" x)) is equal to 5. The value of x +1 x+2 1) x +2 2) x +1 x -1 2 x +2 | .2 3) x +2 4) x +1 a? a +cos (1+b+b+ )=2 then sin 8, 6. If 9 -1 1) a = -3, b = 1 2) a = 1, b = 3 a= b = 3) 2 4)