if cos ( A + B ) = 0 and cot ( A-B ) = √3 find the value of cosecA.cotB + sinA . tanB
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(A+B)=90
(A-B)=30
a=60
b=30
now
2/√3×1/√3+√3/2
2/3+√3/2
(A-B)=30
a=60
b=30
now
2/√3×1/√3+√3/2
2/3+√3/2
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