If cosA = 4/5, cosB = 3/5, then what is the value of cot(A+B)?
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Step-by-step explanation:
cosA=4/5
from here we find value of sinA=3/5;
cosB=3/5
from here we find value of sinB=4/5;
we know that
cot(A+B) =(cotA.cotB-1) /cotA+cotB
in for of sinh and cos
cosA. cosB-sinA sinB / cosB+ cosA
by putting value the answer is 00
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