Trignometric Identities

Trigonometric identities

cosx=-1/3 , x in quadrant III. Find the values of other five trignometric functions

sinx=1/4 , x in quadrant II. Find the values of other five trignometric functions

Find the general solution of the following trignometric equations: cos theta=1/2

Find the values of trignometric functions in Questions 6 to 10. sin765^(@)

All trignometric functions are periodic but only sine or cosine functions are used to define SHM. Why?

In reducing a given trignometric equation to the standard form (sinx =sin alpha) or ( cosx = cos alpha) etc. We apply several trignometric or Algebric transformation.As a result of which final form so obtained may not be equivalent to the original equation resulting either in loss of solutions or appearance of extraneous solutions. The solution set of the equation sqrt(5-2sinx) = 6 sinx -1 is

In reducing a given trignometric equation to the standard form (sinx =sin alpha) or ( cosx = cos alpha) etc. We apply several trignometric or Algebric transformation.As a result of which final form so obtained may not be equivalent to the original equation resulting either in loss of solutions or appearance of extraneous solutions. The equation 2cot 2x-3 cot3x = tan 2x has

In reducing a given trignometric equation to the standard form (sinx =sin alpha) or ( cosx = cos alpha) etc. We apply several trignometric or Algebric transformation.As a result of which final form so obtained may not be equivalent to the original equation resulting either in loss of solutions or appearance of extraneous solutions. The solution of sqrt(13-18tanx) = 6 tanx -3 is

If sinA=-3/5 and A lies in third quadrant, find the remaining trignometric ratios.