View Compilation Error

0_0_29550837_27425.cpp: In function 'int main()':
0_0_29550837_27425.cpp:32:4: error: 'a2' was not declared in this scope
    a2=a[i]*a1+b1;
    ^
0_0_29550837_27425.cpp:33:4: error: 'b2' was not declared in this scope
    b2=b[i]*t;
    ^