I now have time to do some of the remaining questions :D good news.
3)\(\frac{siny+tany+cosy}{tany}=siny\times coty+1+cosy\times coty=cosy+cosy\times secy+cosy\times coty=cosy(1+secy+coty)\)
4)\(cscUsecU-cotU=\frac{1}{sinUcosU}-\frac{1}{tanU}=\frac{tanU-sinUcosU}{sinUcosUtanU}=\frac{sinU(1-cos^2U)}{sin^2UcosU}=\frac{sin^3U}{sin^2UcosU}=\frac{sinU}{cosU}=tanU\)
5)\(\frac{tanA+1}{sec^4A}=\frac{\frac{sinA+cosA}{cosA}}{\frac{1}{cos^4A}}=cos^3AsinA+cos^4A=cos^3A(sinA+cosA)\)
Welcome back then
Whoever set this question must have gone nuts. XD
Anyways
2,974,807+3,907,738+1,119,583+729,498+512,930+37,360+908,007+26,745+135,294+978,933+28,674
= 11,359,569
10^30
=10000000000000000000000000000000
where there is 30 zeros
sorry for the bad grammar because i come from china
90+0.05y=83.5
0.05y=83.5-90=-6.5
y = -130
\(5cosx-2=2\)
\(5cosx=4\)
\(cosx=0.8\)
\(x=acos0.8\)
which is 36.869897.......° or 0.643501108...... radians
Do you actually mean: \(\frac{1}{3}\times\pi\times9\times4?\)
This will equal 12π
You just write it like a normal equation, but you replace the = with >, <, ≤, or ≥.
http://www.piday.org/million/
1 million digits of pi
I will do the second one may be?
\(sinA(1+cot^2A) = sinA+\frac{sinA}{tan^2A}=sinA+\frac{sinAcos^2A}{sin^2A}=\frac{sin^2A}{sinA}+\frac{cos^2A}{sinA}=\frac{1}{sinA}=cscA \)
