I kind of think I know what I could do, but I am unsure how to proceed.

Q: Find a + b in radians if tan a = M and tan b = N and (3M+3)(2N+2)= 12.

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- Feb 2nd 2006, 01:57 PMmathAna1ys!5unsure
I kind of think I know what I could do, but I am unsure how to proceed.

Q: Find a + b in radians if tan a = M and tan b = N and (3M+3)(2N+2)= 12. - Feb 2nd 2006, 02:45 PMThePerfectHackerQuote:

Originally Posted by**mathAna1ys!5**

(1)

Now since factor and divide thus, now open parantheses (remember to FOIL) thus,

thus,

substitute that into (1):

thus,

thus,

as one anwer.

Q.E.D.

(Note it was assumed that was non-coterminal was or ).