tan A+tan B+tan C=

A + B + C = (pi) / (2) rArr tan A tan B + tan B tan C + tan C tan A =

If A+B+ C=(pi)/(2) then what is the value of tan A tan B +tan B. tan C + tan C tan A?

If A+B+C= pi/2 , prove that tan A tan B+tan B tan C+tan C tan A=1

In a Delta ABC, if cos A cos B cos C=(1)/(3) then value of,tan A tan B+tan B tan C+tan C tan A is

In Delta ABC If cos A cos B cos C=(1)/(3) then tan A tan B+tan B tan C+tan C tan A=

If tan^(2)A+tan^(2)B+tan^(2)C-tan B tan C-tan C tan A-tan A tan B then Delta ABC is (i) Isosceles (ii) Right Angled (iii) Equilateral (iv) Right angled isosceles

If A=35^(@),B=15^(@) and C=40^(@), then tan A.tan B+tan B.tan C tan C.tan A is equal to

In Delta ABC, if (tan A-tan B)/(tan A+tan B)=(c-b)/(c), then A is equal to

If in Delta ABC,(tan A-tan B)/(tan A+tan B)=(c-b)/(c), prove that :A=60^(@).