Question

Prove that (l^2)+(m^2)+(n^2)=1

Answer 1

plesse write full question.....................

Answer 2

Let's solve for m.

12+m2+n2=1

Step 1: Add -n^2 to both sides.

m2+n2+1+−n2=1+−n2

m2+1=−n2+1

Step 2: Add -1 to both sides.

m2+1+−1=−n2+1+−1

m2=−n2

Step 3: Take square root.

m=√−n2 or m=−√−n2

Hence, it is not prove that the answer is 1.