CBSE Class 11-science Answered
If A+B+C = pie
cotAcotB + cotBcotC + cotCcotA = 1
prove it
Asked by rekkakr1095 | 09 Nov, 2010, 09:22: PM
Expert Answer
Dear Student
Please check the signs in the question you have posted
cotAcotB + cotBcotC + cotCcotA = 1
Highlighted plus signs must be minus
here is the solution
Answered by | 10 Nov, 2010, 09:23: AM
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