`41/75=……….`

tan75^(@)-cot75^(@)= ………..

Find the first term and common difference for each of the A.P. (i) 4,1,-2, -5,……… (ii) -1.25, -1.50, -1.75, -2 ……. (iii) 53, 38, 23, 8 ,………

Find the first term and common difference for each of the A.P. (i) 4,1,-2, -5,……… (ii) -1.25, -1.50, -1.75, -2 ……. (iii) 53, 38, 23, 8 ,………

Angle of minimum deviation for a prism of refractive index 1.5 is equal to the angle of prism The angle of prism is (cos 41^(@) = 0.75)

Angle of minimum deviation for a prism of refactive index 1.5, is equal to the angle of the prism. Then the angle of the prism is (cos 41^(@) = 0.75)

Angle of minimum deviation for a prism of refactive index 1.5, is equal to the angle of the prism. Then the angle of the prism is (cos 41^(@) = 0.75)