If A=[etetete−tcost−e−tcost−e−tsint2e−tsinte−tsint−e−tsint+e−tcost−2e−tcost], then A is:
Held on 9 Jan 2019 · Verified 6 Jul 2026.
Invertible only if t=π
Not invertible for any t∈R
Invertible only if t=2π
Invertible for all t∈R
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