If m. sins^2a - n. cos^2a = m-n then prove m. sin^4a + n. cos^4a = mn/m+n

c

step-by-step explanation:

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of