The recursive rule for a geometric sequence is given.
2 answers:
Answer:
Step-by-step explanation:
The recursive rule for a geometric sequence is given.
a1= 2/5; an=
a1 is the first term = 2/5
USe the recirsive rule. compare an= , where 'r' is the common ratio with the given recursive formula
r= 5, common ratio is 5
General explicit rule
a1=2/5 and r= 5
So explicit rule becomes
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The length of TY is 2.26.
Solution:
In ΔTRY, θ = 37°, Adjacent side = 3.
To find the length of TY.
Using trigonometry identity,
TY = 2.26
Hence the length of TY is 2.26.
Answer:
x = ± 1 , x = ±
Step-by-step explanation:
Let u = x² , then
- 3x² + 2 = 0 , can be expressed as
u² - 3u + 2 = 0 ← in standard form
(u - 1)(u - 2) = 0 ← in factored form
Equate each factor to zero and solve for u
u - 1 = 0 ⇒ u = 1
u - 2 = 0 ⇒ u = 2
Change the variable u back to x
x² = 1 ( take square root of both sides )
x = ± 1
or
x² = 2 ( take square root of both sides )
x = ±