Answer:
cos 90°
Step-by-step explanation:
(cos 60°)(cos 30°) − (sin 60°)(sin 30°)
= cos ( 60° + 30°)
= cos 90°
Answer:
gtttgig
Step-by-step explanation: ;
You have to flip the last fraction and multiple both the top by the top and the bottom by the bottom then you have to simply but just look that up or ask your teacher.
x-4=x(2)
x-4=2x
+4 +4
8 = 6
lilly has 8 stamps and mackenzie has 6
Answer:
0.79
Step-by-step explanation:
i calvulated and got 0.79
