If cot a is equal to 12 by 5 then find the value of Sin A + Cos A bracket into cosec a
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cotA=12/5
to find( sinA+ cosA) cosec A
cot A=b/p b= 12 , p=5
by pythogoreas theorem
h^2= b^2+p^2
h=13
sinA = p/h
= 5/13
cos A = 12/13
cosec A = h/p= 13/ 5
(sinA + cosA)cosec A
(5/13+ 12/13)× 13/5
17/13× 13/5
=17/5 ans.
to find( sinA+ cosA) cosec A
cot A=b/p b= 12 , p=5
by pythogoreas theorem
h^2= b^2+p^2
h=13
sinA = p/h
= 5/13
cos A = 12/13
cosec A = h/p= 13/ 5
(sinA + cosA)cosec A
(5/13+ 12/13)× 13/5
17/13× 13/5
=17/5 ans.
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Answer:
17/5
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