Sin5x + sin3x = 2sin4x.cosx
cos5x + cos3x = 2cos4x.cosx
so
=
= tan4x
Answer: x=7
Step-by-step explanation:
3x=21
21 divided by 3 is 7
so x equals 7
Answer:
(x-4)²
Step-by-step explanation:
(x-4)²
(x-4)(x-4)
x(x-4)-4(x-4)
x²-4x-4x+16
x²-8x+16
Well, (f o g)(4) is just another way of saying f( g(4) ).
so, we can simply first find g(4), and then plug that in f(x),
Answer:
25.035
Step-by-step explanation:
25.0347 we're looking at these two numbers, 5-9 round up, 1-4 round down.
Looking at the 7 we round the left number up by +1 and 4 becomes 5 and thats 3dp.