[" (ii) "(1+tan theta+sec theta)(1+cot theta-csc theta)=],[[" (A) "0," (B) "1],[" (iii) "(sec A+tan A)(1-sin A)=," (C) "2]]

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( 1 + tan theta + sec theta ) ( 1 + cot theta - cosec theta ) =

(1+tan theta+sec theta)(1+cot theta-cosec theta) = ? (a) -1 (b) 0 (c) 2

(1+tan theta+sec theta)(1+cot theta- cosec theta) is equal to

(1+tan theta+sec theta)(1+cot theta-"cosec "theta) is equal to :

" (2.) "tan theta+cot theta=sec theta cosec theta

tan theta+(1)/(tan theta)=sec theta cosec theta

The identity (1+ tan theta - sec theta)(1+ cot theta - "cosec"theta) not equals

x=sec theta-tan theta, y=cosec theta+cot theta, then

(sec theta+csc theta)^(2)-(tan theta+cot theta)^(2)=