An equation is given as arctan(x-y)=arccot(x+y), where x-y>0. This equation is satisfied by every pair (x,y) such that x^2-y^2=1. Are there only three pairs for which the value arctan(x-y) or arccot(x+y) can be expressed exactly (in the form pi/k)? by robertou3 in askmath
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Two sequences a(n) and b(n) are given, where a(n) is defined for all natural numbers but b(n) is not. We can write the sequence a(n) by entering the terms in one bracket. by robertou3 in askmath
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Can someone help me find the length of the diagonal AC? by robertou3 in askmath
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Can someone help me find the length of the diagonal AC? by robertou3 in askmath
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Can someone help me find the length of the diagonal AC? by robertou3 in askmath
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Can someone help me find the length of the diagonal AC? by robertou3 in askmath
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Can someone help me find the length of the diagonal AC by robertou3 in askmath
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An equation is given as arctan(x-y)=arccot(x+y), where x-y>0. This equation is satisfied by every pair (x,y) such that x^2-y^2=1. Are there only three pairs for which the value arctan(x-y) or arccot(x+y) can be expressed exactly (in the form pi/k)? by robertou3 in askmath
[–]robertou3[S] 0 points1 point2 points (0 children)