View Compilation Error

0_0_18831521_24009.cpp: In function 'double getVa(double)':
0_0_18831521_24009.cpp:70:45: error: expected ';' before ')' token
     return sin(a)-(sin(a)*sin(a)*sin(a))/3.0)+((PI*cos(a))-(a*cos(a));
                                             ^
0_0_18831521_24009.cpp:70:45: error: expected primary-expression before ')' token