There are no two whole numbers that multiply to 7. Multiplication is how you get an area on 2D items. 7 is a prime number.
Arcsin (2/5) = arctan(2/√21)
now as tan (arctan (x) ) = x
hence tan (arctan (2/√21)) = 2/√21 = 0.436
ask if you do not understand the first part
Answer:
Can i get an image of thw question please?
Step-by-step explanation:
The two numbers are a and b.
Because their sum is 0, therefore
a + b = 0 (1)
Because their difference is 2, therefore
a - b = 2 (2)
Add (1) and (2).
a + b + (a - b) = 0 + 2
2a = 2
a = 1
From (1), obtain
1 + b = 0
b = -1
Answer:
a = 1
b = -1