If cot a=1/5then find the value of (sin a+cos a)cosec a
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cot a=1/5
cos a/sina=1/5
sina=5 cos a
=sin a/ sin a+ cos a / sin a
=1 + cos a/ sin a
=1 + cos a/ 5 cos a
= 1 + 1/5
= 6/5
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