Question

If x= 1, y = 2 and z = 5, find the
value of x2 + y2 + z2+ 2xyz.​

Answer 1

☆ɢɪᴠᴇɴ:

• x=1

• ʏ=2

• ᴢ=5

☆ᴛᴏ ғɪɴᴅ:

• x²+ʏ²+ᴢ²+2xʏᴢ

☆sᴏʟᴜᴛɪᴏɴ:

x²+y²+z²+2xyz

: .(1)²+(2)²+(5)²+2×1×2×5

: .1+4+25+20

: .50