Let `a,b,c in N (a> b)` satisfy `c^2-a^2-b^2 = 101` with `ab=72`. Then which of the following can be co

Let a,b,c>0 such that a>b>c and a+c>2b .If In(a+c)+In(a-2b+c)=2In(a-c) then which of the following relation is(are) correct?

Let ABC be a triangle. If cos2A + cos2B+ cos 2C = -1 , then which one of the following is correct?

Let a,b,c varepsilon R and satisfying (c-3b)^(2)+a^(2)-6ab+2ac=0, then the variable line ax+by+c=0 passes through a fixed point whose coordinates are

If a,b,c are sides opposte to the angles A,B , C then which of the following is correct (1)(b+c)cos((A)/(2))=a sin((B+C)/(2))(2)(b+c)cos((B+C)/(2))=a sin((A)/(2))(3)(b-c)cos((B-C)/(2))=a(cos A)/(2)(4)(b-c)cos((A)/(2))=a sin((B-C)/(2))

if a,b,c are natural number satisfying a^(2)+b^(2)=c^(2), then

The sides a, b, c of a triangle satisfy the relations c^2=2ab and a^2+c^2=3b^2 . Then the measure of angleBAC , in degrees, is