Question

answer this ques please. i think its of s chand

Answer 1

.75×.75+.75×.25+.25×25
.75×.75+.75×.25+.25×25
→.75²+(.75)(.25)+.25²
.75²+(.75)(.25)+.25²
→(.75+.25)²-.1875
(.75+.25)²-.1875
→1-.1875
1-.1875
→.8125
.8125
→1
1
→1
Hence, proved.