Hence, we 31+ 1 EXAMPLES Soldes** 3) +

Write (33)! = [32.16.8.4.2]. [33.31.30…3.1] Hence, prove that (33)! is divisible by 2^15

Find A^(-1) , where A=[{:(4,2,3),(1,1,1),(3,1,-2):}] Hence, solve the following system equations {:(4x+2y+3z=2),(x+y+z=1),(3x+y-2z=5):}

NCERT Questions 3.1

If A=[(3,1),(-1,2)] . Show that A^2-5A+7I=0 Hence find A^4 and A^-1 .

Arrange the followings sets of numbers in the order such that they should be in proportion. Hence, find the product of extermes. (i0 40, 18, 63,20 (ii) 1/4,2/3,1/3,1/8

Fill in the names of useful items made from jute fibres in Fig. 3.1. One such example is given.

If A=[[1,-1,12,1,-31,1,1]], find A^(-1) and hence solve the system of linear equation.x+2y+z=4,-x+y+z=0,x-3y+z=2

The vertices of a triangle ABC are A(1,2),B(2.3) and C(3,1). Find the cosines of the interior angles of the triangle and hence or otherwise find the coordinates of,(a) orthocenter of the triangle(b) circumcentre of the triangle