For a prism prove that
`A + delta = i+e`

Discuss the phenomenon of refraction throug a prism.Prove the formula: delta=A (mu-1) .

Discuss the phenomenon of refraction through a prism and prove that for a prism: mu=(sin(A + delta_m)//2)/(sin A//2) ,where A is anle of prism, mu s refractive index of the material of prism and delta_m is the ngle of minimum deviation.

If A, B and C are any three sets, then prove that : A nn (B Delta C) = (A nn B) Delta (A nn C) .

Discuss the phenomenon of refraction of light through a glass prism. Derive the relation: A+delta=i+e ,where the symbols have their usual meninges.

If in triangle ABC, cot A + cot B + cot C = sqrt3 , prove that the triangle is equilateral.

If in a triangle r_(1) = r_(2) + r_(3) + r , prove that the triangle is right angled

Explain refraction of light through a prism and derive relations: i + e = A + delta