Answer:
62>(9*116)
Step-by-step explanation:
Answer: x4+13x2+36=0
Step-by-step explanation:
Let's solve your equation step-by-step.
x4+13x2+36=0
Step 1: Factor left side of equation.
(x2+4)(x2+9)=0
Step 2: Set factors equal to 0.
x2+4=0 or x2+9=0
First let’s divided 455 by 6.5 to figure out how far he travels in 1 hour which is equal to 70, now let’s do 2100 divided by 70, it will take 30 hours for him to drive 2100 miles.
Answer: No. both are independent quantity. Therefore, the number of books purchased does not affect the value of m.
Step-by-step explanation:
Given: Julio and his sister bought 8 books and m magazines for $1 each.
The amount of money that Julio spent is represented by the expression 1/2(m+8)
Thus, the amount she and her sister will pay is dependent on the number of books and the number of magazines, but the number of magazines and the number books are independent quantity.
Therefore, the number of books purchased does not affect the value of m.
Take L.H.S sin2A+sin2B/sin2A-sin2B
= sin2A+sin2B/sin2A-sin2B
Put
[sinC+sinD = 2sin(C+D)/2cos(C-D)/2]
[sinC-sinD = 2cos(C+D)/2.sin(C-D)/2]
= 2 sin(2A+2B)/2 cos(2A-2B)/2 / 2 cos(2A+2B) sin(2A-2B)
= sin(A+B).cos(A-B)/cos(A+B).sin(A-B)
= sin(A+B)/cos(A+B) . cos(A-B)/sin(A-B)
= tan(A+B).cot(A-B)
= tan(A+B).1/tan(A-B)
= tan(A+B)/tan(A-B)
∴ Hence we proved sin2A+sin2B/sin2A-sin2B=tan(A+B)/tan(A-B)
