via the angle sum formula of sin
which proves the second choice
the third choice is wrong since for x=0,y=0 it will show that 2=1 which is incorrect
for the fourth one you can do some thing similar to choice one just expand the sum formula of sin and that should be true too
so
the first , the second and the fourth are all true
Answer:
Option d. is the correct choice.
Step-by-step explanation:
8 can be written as √8 x √8 = √64
So, given expression will become:
= √64 x √6
= √384
Best Regards!
Answer:
2.91 units
Step-by-step explanation:
If and only if this is a right triangle, we can apply the some fimctopm to determine the length of side BD:
side BC
tan 20 degrees = ---------------
8
or side BC = 8 tan 20 degrees. Since tan 20 degrees = 0.364 radians,
side BC has length 8(0.364) = 2.91 units
Answer: It equals a
Step-by-step explanation:
Multiply 80 miles by 4 hours to get 320 miles for 4 hours.
