find the square of 71 by using first Identity.
Answers
Answered by
1
Step-by-step explanation:
thid is the correc answer
Attachments:
Answered by
2
71 can also be re-written as 71 = (70+1). Comparing the trigonometric identity with the number (70+1) we get, the value of 'a' as 70 and the value of 'b' as 1. Substituting the value of a and b in the equation (a+b)2=a2+2ab+b2 to determine the square of 71.
Step-by-step explanation:
I HOPE it's HELPFUL for you
Similar questions