Answer:
this question > any other question
Step-by-step explanation:
Answer:
Step-by-step explanation:
you know ; for all reals a ; cos(π/2 - a) = sin(a)
so : sin(5x+15) = cos(π/2-(5x+15) ) = cos(π/2-5x-15)
sin(5x+15)=cos(4x−6) eqivaut : cos(π/2-5x-15) = cos(4x−6)
note : cos(a)=cos(b) : a= b +2kπ or a= - b +2kπ ....k in Z
π/2-5x-15 = 4x−6 + 2kπ or π/2-5x-15 = - (4x−6) + 2kπ....k in Z
continue calculate : x .......
Answer:
to me it's a simple solution
Step-by-step explanation:
Answer:
x is the retail price
b/x 35/100 and cross multiply?
or 100b/35x
(this is the only thing i can think of)
Step-by-step explanation:
