Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identity
tanx = , then
tanx =
x = ( ) =
Hence x = + kπ ( k ∈ Z )
Where what.............????
The coefficients of x are already opposites, so you can simply add the two equations to eliminate x.
... (-7x +3y) + (7x -2y) = (14) + (-14)
... y = 0 . . . . . . . simplify
... -7x + 3·0 = 14 . . . . substitute the value of x into the first equation
.. x = 14/(-7) = -2
The solution is (x, y) = (-2, 0).
Answer:
x=13.6
Step-by-step explanation:
By Pythagoras theorem, 5.5^2+x^2=14.7^2. x^2=14.7^2-5.5^2. x=13.6
Answer:
Always true
Step-by-step explanation:
the difference of two acute angles is an acute angle.
It's ALWAYS TRUE