If x +y = 1/a and x-y =a then the value of is:
ক) 4
খ) 2
গ) 1
ঘ) a2
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ক) use
খ) suing
গ) to use
ঘ) the use
ক) x-y
খ) y/x
গ) x/y
ঘ) 0.
ক) pathologist
খ) nephrologist
গ) oncologist
ঘ) neurologist
ক) He helps me thick and thin.
খ) He helps me in thick and thin .
গ) He helps me through thick and thin.
ঘ) He helps me with thick and thin .
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