Answer: Tan
Step-by-step explanation:
sec is is the reciprocal of cosine therefore 1/cos
csc is the reciprocal of sine therefore 1/sin
when you divide by a fraction you can just multiply by the reciprocal so instead of dividing 1/cos by 1/sin you multiply 1/cos by sin/1(which is just sin)
so multiply straight across you get sin/cos which is tangent
