सिद्ध करें की `tan (270^@ -A)=cot A`

cot(270^@-theta)=

Simplify : ("sec"(270^@ - A) "sec"(90^@ - A) - tan (270^@ -A) tan (90^@ + A))/(cot A + tan (180^@ + A) + tan (90^@ + A) + tan (360^@ - A) + cos 180^@)

tan A-cot A=-2cot2A

Simplify the following : sin(90^@+ theta) tan (270^@ +theta) cot (90^@+theta) cosec (270^@+theta) .

Prove: (iii) "sec" (270^(@) - theta) "sec" (90^(@)- theta) - tan (270^@ - theta) tan (90^(@) + theta) = -1

Prove that : (cot A + tan B)/ (cot B + tan A) = cot A tan B

Show that : (cot A+tan B)/(cot B+tan A)=cot A tan B

Show that (cot A + tan B) / (cot B + tan A) = cot A. tan B.

Prove: (cot A+tan B)/(cot B+tan A)=cot A tan B