a. -tan 65deg
b. -tan 25deg
c. tan 25deg
d. tan 65deg
2007-04-13 02:54:49 · 4 answers · asked by simba22 1 in Science & Mathematics ➔ Mathematics
cot 115 degees is equivalent to
- tan65 degrees
- - - - - - - -s-
2007-04-13 03:06:57 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
cot 115= cot (180-65)
this is in the second quadrant where tan is negative
cot (180-65)= -tan(65)
Sorry about previous posting i was doing exactly what i was telling you not to do
2007-04-13 03:12:13 · answer #2 · answered by Faz 4 · 0⤊ 0⤋
b) -tan 25
is you have a calculator that has sin, cos, tan (but it probobly does not have csc, sec, and cot), you can type in cot as 1/tan (and the same way with csc and sec)
2007-04-13 02:59:53 · answer #3 · answered by Link 4 · 0⤊ 0⤋
a. -tan65º
2007-04-13 02:59:47 · answer #4 · answered by physicist 4 · 0⤊ 0⤋