[(1+tan^(2)A)/(1+cot^(2)A)=],[[" (A) "sec^(2)A," (B) "-1," (C) "cot^(2)A," (D) "tan^(2)A]]

(1+ tan ^(2) A)/( 1 + cot^(2) A) equals

int(1+tan^(2)x)/(1+cot^(2)x)dx

(1+ tan^2 A)/(1+cot^2 A) = tan^2 A

int(1+tan^(2)x)/(1+cot^(2)x)dx-

(1+tan^(2)theta)/(1+cot^(2)theta)=

(1+tan^(2)A)/(1+cot^(2)A) is equal to sec^(2)A(b)-1(c)cot^(2)A(d)tan^(2)A

(1+tan^2A)/(1+cot^2A) is equal to sec^2A (b) -1 (c) cot^2A (d) tan^2A

Choose the correct option. Justify your choice : (1+tan^2A)/(1+cot^2A) a. sec^2A b. -1 c. cot^2A d. tan^2A

(tan^(2)A)/(1+tan^(2)A)+(cot^(2)A)/(1+cot^(2)A)=1

((1+tan^(2)A)/(1+cot^(2)A))=((1-tan A)/(1-cot A))^(2)=tan^(2)A