Question

solve this questions attached above .​

Answer 1

HII

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L{Sin(hat)} = a/(s^2 - a^2)

L{t*sin(hat)} = -d(a/(s^2 - a^2))/ds

L{t*sin(hat)} = 2as/(s^2 + a^2)^2

_/\_☹️

Hope it may helps you

Answer 2

plz refer to the attachment