Question
In any ΔABC having sides a, b, c opposite to angles A, B, C respectively, then-
The correct answer is:
Related Questions to study
If the sides a, b, c of a triangle are such that a : b : c : : 1 : 
: 2, then A : B : C is-
If the sides a, b, c of a triangle are such that a : b : c : : 1 : : 2, then A : B : C is-
If the angles of a triangle are in ratio 4 : 1 : 1 then the ratio of the longest side and perimeter of triangle is :
If the angles of a triangle are in ratio 4 : 1 : 1 then the ratio of the longest side and perimeter of triangle is :
In a ΔABC, 2ac sin
In a ΔABC, 2ac sin
In a triangle PQR,
.If tan 
and tan 
are the roots of the equation ax2 + bx + c = 0(a ≠ 0), then
In a triangle PQR, .If tan and tan are the roots of the equation ax2 + bx + c = 0(a ≠ 0), then
In a triangle ABC, a : b : c = 4 : 5 : 6, then the ratio of circum-radius to that of the in-radius is-
In a triangle ABC, a : b : c = 4 : 5 : 6, then the ratio of circum-radius to that of the in-radius is-
In a ΔABC, let 
. If r and R are the inradius and the circumradius respectively of the triangle then 2(r + R) is equal to -
In a ΔABC, let . If r and R are the inradius and the circumradius respectively of the triangle then 2(r + R) is equal to -
In-circle of radius 4 cm of a triangle ABC touches the side BC at D. If BD = 6cm., DC = 8 cm, then the area of the triangle ABC is-
In-circle of radius 4 cm of a triangle ABC touches the side BC at D. If BD = 6cm., DC = 8 cm, then the area of the triangle ABC is-
In a ΔABC, 
, then
In a ΔABC, , then
ΔABC and ΔDEF have sides of lengths a, b, c and d, e, f respectively (symbols are as per usual notations). a, b, c, and d, e, f satisfy the relation 
then -
ΔABC and ΔDEF have sides of lengths a, b, c and d, e, f respectively (symbols are as per usual notations). a, b, c, and d, e, f satisfy the relation then -
If A + B + C =
, then cos A + cos B – cos C =
If A + B + C =, then cos A + cos B – cos C =
For thorium A =232, Z=90 at the end of some radioactive disintegration we obtain an isotope of lead with A=208 and Z=82, then the number of emitted 
particles are
For thorium A =232, Z=90 at the end of some radioactive disintegration we obtain an isotope of lead with A=208 and Z=82, then the number of emitted particles are
When a hydrogen atom is raised from the ground state to an excited state
When a hydrogen atom is raised from the ground state to an excited state
How much work must be done to pull apart the electron and the proton that make up the Hydrogen atom, if the atom is initially in the state with n=2
How much work must be done to pull apart the electron and the proton that make up the Hydrogen atom, if the atom is initially in the state with n=2
The radius of a nucleus with atomic mass number 7 is 2fermi. Find the radius of nucleus with atomic number 189.
The radius of a nucleus with atomic mass number 7 is 2fermi. Find the radius of nucleus with atomic number 189.
An electron with kinetic energy is incident on a -atom in its ground state. The collision
An electron with kinetic energy is incident on a -atom in its ground state. The collision
