expand limθ\Rightarrow pi^2(tan(θ)-sec(θ))

פתרון

expand

l im θ \Rightarrow π^{2} (tan (θ) - sec (θ))

π^{2} i \Rightarrow l m θ tan (θ) - π^{2} i \Rightarrow l m θ sec (θ)

צעדי פתרון

l im θ \Rightarrow π^{2} (tan (θ) - sec (θ))

= π^{2} i \Rightarrow l m θ (tan (θ) - sec (θ))

a (b - c) = ab - a c

: פתח סוגריים בעזרת

a = l im θ \Rightarrow π^{2}, b = tan (θ), c = sec (θ)

= l im θ \Rightarrow π^{2} tan (θ) - l im θ \Rightarrow π^{2} sec (θ)

= π^{2} i \Rightarrow l m θ tan (θ) - π^{2} i \Rightarrow l m θ sec (θ)

e x p an d (1 - cos (t))^{2} + sin^{2} (t)

e x p an d (t cos (2 t) + sin (t))^{2}

\frac{d}{d t} ((x) 200 (30 - t^{2}))

e x p an d \frac{x y ( x ^{2} - y ^{2} )}{x ^{2} + y ^{2}}

e x p an d (1 + 2)^{6}