Question

ans pls..........
dont write irrelvnt ans.......​

Answer 1

☆ANSWER☆

1. (i) SOLUTION

103×97=(100+3)(100−3)

Using, a2−b2=(a+b)(a−b)

=(100)2−(3)2

=10000−9

=9991

___________________________

(ii) SOLUTION

105×105 is similar to 105^2

(105)^2=(100+5)2        [(a+b)^2=a^2+b^2−2ab]

=(100)^2+(5)^2+2(5)(100)

=10000+25+1000

=11025.

__________________________

14. SOLUTION

∠ACB=50°,∠ACB=∠CAD(∵BC∣∣AD)

In △AOD,∠DAO+∠ADO+∠AOD=180°

50+∠ADB+90°=180°

∠ADB=180°−140°=40

___________________________

HOPE YOU'RE SATISFIED WITH MY ANSWER ☺

IT'S MY PLEASURE TO HELP MY SISTER

HAVE A GREAT DAY AHEAD ❣

Answer 2

Answer:

9991

Step-by-step explanation:

(1). 103×97=(100+3)(100-3)

using a2-b2=(a+b)(a-b)

=(100)2-(3)2

=10000-9

99991

hope you will understand my answer