[" 18."11A=[[0,-con(alpha)/(2)],[cos(alpha)/(2),0]]],[1+A=0-A/[[cos a],[sin alpha]]]

If A=,[[0,-tan((alpha)/(2))]tan((alpha)/(2)),0]], then I+A=(I-A)[[cos alpha,-sin alphasin alpha,cos alpha]]

A=[[0,-tan((alpha)/(2))tan((alpha)/(2)),0]]then(I-A)[[cos alpha,-sin alphasin alpha,cos alpha

If A=[(0, -tan""(alpha)/(2)),(tan""(alpha)/(2),0)] , then show that (I+A) =(I-A) [(cos alpha, - sin alpha),(sin alpha, cos alpha)] , where I is the identity matrix of order 2.

Let A_(alpha)=[[cos alpha,-sin alpha,osin alpha,cos alpha,00,0,1]]

Delta=det[[0,sin alpha,-cos alpha-sin alpha,0,sin betacos alpha,-sin beta,0]]

Let A,=[[0,-tan((alpha)/(2))tan((alpha)/(2)),0]] and I be the identity matrix of order 2. show that I+A=(I-A)[cos alpha-sin alpha sin alpha cos alpha]

If A=[(0,-"tan"(alpha)/(2)),("tan"(alpha)/(2),0)] and I is the identity matrix of order 2, show that I+A=(I-A)[(cos alpha,-sin alpha),(sin alpha, cos alpha)]

If A=[(0,-"tan"(alpha)/(2)),("tan"(alpha)/(2),0)] and I is the identity matrix of order 2, show that I+A=(I-A)[(cos alpha,-sin alpha),(sin alpha, cos alpha)]

If A=[(0,-"tan"(alpha)/(2)),("tan"(alpha)/(2),0)] and I is the identity matrix of order 2, show that I+A=(I-A)[(cos alpha,-sin alpha),(sin alpha, cos alpha)]