Hello
please how can we calculate the yield
in % of ohmic conductor in actif circuit
with Battery( with his resistance)
and a motor( with his resistance)
knowing theirs caracteristics and
the intensity?
I need a formula.
let f(λ) =∫_(−∞) ^(+∞) ((sin( λe^x +e^(−x) ))/(x^2 +λ^2 ))dx with λ≥0
1) detdrmine a explicit form of f(λ)
2) calculate f^′ (λ) at form ofintergral and find
its value.
Master comes after Chess disappeared.
Boyka comes after Master disappeared.
BK comes after Boyka disappeared.
What comes after BK disappeared?
1. A−Team
2. Girlka
3. Bezirksschornsteinfegermeister
4. none from above
[A question from NMO 2019 in Madagascar]
ABC is any triangle.
C′ . B′ .A′ are respectively middles
of [AB] . [AC] and [BC].
we suppose that
AB=c AC=b BC=a.
1) u^(→ ) =a^2 BC^→ +b^(2 ) C^→ A+c^2 AB^→ is a vector
Demonstrate that u^→ =(a^2 −b^2 )AC^→ +(c^2 −a^2 )AB^→ .
i have done it.
2)Deduct that u^→ is not a null vector.