[O-(b/a)],[O" b/a "],[O" c/a "],[0-(d/a)]

If the matrix A B is zero, then It is not necessary that either A=O or, B=O (b) A=O or B=O (c) A=O and B=0 (d) all the above statements are wrong

If the matrix AB is zero,then It is not necessary that either A=O or,B=O (b) A=O or B=O( c) A=O and B=0 (d) all the above statements are wrong

In Figure, A O B is a straight line. If /_A O C+/_B O D=85^0, then /_C O D= (a)85^0 (b) 90^0 (c) 95^0 (d) 100^0

In Figure, A O B is a straight line. If /_A O C+/_B O D=85^0, then /_C O D= (a) 85^0 (b) 90^0 (c) 95^0 (d) 100^0

The diagonals of a parallelogram A B C D intersect at O . If /_B O C=90^0\ a n d\ /_B D C=50^0, then /_O A B= (a) 40^0 (b) 50^0 (c) 10^0 (d) 90^0

In Fig. 9.25, diagonals AC and BD of quadrilateral ABCD intersect at O such that O B" "=" "O D . If A B" "=" "C D , then show that: (i) a r" "(D O C)" "=" "a r" "(A O B) (ii) a r" "(D C B)" "=" "a r" "(A C B) (iii) D A" "||" "C

If A B ,\ B C\ a n d\ C D are equal chords of a circle with O as centre and A D diameter, then /_A O B= (a) 60^0 (b) 90^0 (c) 120^0 (d) none of these

A B C D is a trapezium in which A B C D . The diagonals A C and B D intersect at O . Prove that (i) A O B C O D (ii) If O A=6c m , O C=8c m , Find: (A r e a ( A O B))/(A r e a ( C O D)) (b) (A r e a ( A O D))/(A r e a ( C O D))

Diagonal A C\ a n d\ B D of trapezium A B C D , in which A B || D C , intersect each other at Odot The triangle which is equal in area of A O D is A O B (b) B O C (c) D O C (d) A D C

In Figure, rays O A ,\ O B ,\ O C ,\ O D\ a n d\ O E have the common end point O . Show that /_A O B+\ /_B O C+\ /_C O D+\ /_D O E+\ /_E O A=360^0