[" 4.Evaluate "|[sin^(2)A,cot A,1],[sin^(2)B,cot B,1],[sin^(2)C,cot C,1]|],[" where "A,B,C," are the angles of "Delta ABC]

Find the minimum values of: cot^(2)A+cot^(2)B+ cot ^(2)C where A,B,C are the angles of a triangle.

If f(theta)=det[[sin^(2)A,cot A,1sin^(2)B,cos B,1sin^(2)B,cos B,1sin^(2)C,cos C,1]], then (a) sin^(2)A+sin B+c(b)cot A cot B cot C(c)sin^(2)A+sin^(2)B+sin^(2)C(d)0

If 2sin^(2)A-cot^(2)B=1 then sin A sin B=

For any "Delta"A B C the value of determinant |sin^2\ \ A cot A1sin^2B cot B1sin^2\ \ C cot C1| is equal to- s in A s in B s in C b. 1 c. 0 d. s in A+s in B+s in C

For any "Delta"A B C the value of determinant |sin^2\ \ A cot A1sin^2B cot B1sin^2\ \ C cot C1| is equal to- s in A s in B s in C b. 1 c. 0 d. s in A+s in B+s in C

If in a triangle ABC, |{:(1, sin A ,sin^(2)A),(1,sin B , sin^(2)B),(1, sin C, sin^(2)C):}|= 0 then the triangle is

In Delta ABC, if cot""A/2: cot""B/2:cot ""C/2=1:4:15 , then the greatest angle of the triangle is

In a Delta ABC, if cot((A)/(2)):cot((B)/(2)):cot((C)/(2))=1:4:15 then the greatest angle is

In triangle ABC, if cot A*cot C=(1)/(2)andcot B*cot C=(1)/(18) then the value of tan C is

Delta ABC;(b-c)(cot A)/(2)+(c-a)(cot B)/(2)+(a-b)(cot C)/(2)