Answer:
1
Step-by-step explanation:
The formula is:
Notice that if a = b, the exponent is 1; so, any base raised to the same power as the index will equal the base.
2
if x is 4 then y is 2 unlesss uknwo
Answer:68.2
cos6=71/EF
cos6= 0.960170286650366
0.960170286650366= 71/EF
0.960170286650366*71=EF
EF= 68.2
2 − 4