SOLUTION: 46. find the values of sinu/2 cosu/2 tanu/2 cosu=3/5

Algebra.Com
Question 174458: 46. find the values of sinu/2 cosu/2 tanu/2
cosu=3/5

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
find the values of [sin(u) / 2cos(u)] / [2tan(u) / 2cos(u)] =3/5
-----------------
Invert the denominator and multiply:
[sin(u) / 2cos(u)] * [2cos(u)/2tan(u)] =3/5
Simplify:
[(1/2)tan(u)] * [2cos(u)/2tan(u)] =3/5
Cancel the common factors of 2 and tan(u) to gt:
------
[(1/2)] * [cos(u)/1] = 3/5
cos(u) = 6/5
------------------
But cos values must be between -1 and +1.
Conclusion: No solution
---------------------
Cheers,
Stan H.

RELATED QUESTIONS

24. find the exaxt values of sin2u cos2u tan2u... (answered by rapaljer)
Find the exact value of the trig function csc(u+v) given that sinu= 5/13 and cosu=... (answered by stanbon)
Find the exact value of the trig function cos (u+v) given that sinu= 5/13 and cosu=... (answered by stanbon)
24. find the exact values for sin2u cos2u tan2u cosu=-2/3 (answered by rapaljer)
find the exact values of sin2u, cos2u, and tan2u using cosu=... (answered by tw23279)
given sinu=12/13, sinv=3/5 and cosu>0, find sin (u-v) (answered by Fombitz)
Prove the identity: (1+sinu)/cosu + cosu/(1+sinu) = 2secu Email:... (answered by stanbon)
please help me find the exact values of: sin2u given: sinu= -4/5 and pi < u... (answered by lwsshak3)
please help me find the exact values of: tan2u given sinu= -4/5 and pi< u <... (answered by jsmallt9)