How do you know a function is a quadratic function?
2 answers:
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So the first thing we need to do is multiply 3*-5, since order of operations dictates it (PEMDAS)
Now, whenever we see a minus negative number, we can think of it as adding a positive number
Now we just add them together
23 is the answer
Answer:
b. -36/77
Step-by-step explanation:
As 0 < x < /2 => tan x > 0
As 0< y < /2 => tan y > 0
We have the formula:
=>
=
=>
As tan x = 1/(cotx) =>
As tan x > 0 => tan x = 8/15
=>
=>
As tan y > 0 => tan y = 4/3
As tan (x-y)=