The proof that ΔMNS ≅ ΔQNS is shown. Given: ΔMNQ is isosceles with base MQ, and NR and MQ bisect each other at S. Prove: ΔMNS ≅
ΔQNS We know that ΔMNQ is isosceles with base MQ. So, MN ≅ QN by the definition of isosceles triangle. The base angles of the isosceles triangle, ∠NMS and ∠NQS, are congruent by the isosceles triangle theorem. It is also given that NR and MQ bisect each other at S. Segments_____are therefore congruent by the definition of bisector. Thus, ΔMNS ≅ ΔQNS by SAS.
<span>The correct option is: A. f(x) = 4sin(x − π/2), because: </span> 1. When you evaluate x=π/2 in the function f(x) = 4sin(x − π/<span>2), you obtain: </span> f(π/2) = 4sin(π/2− π/2) f(π/2) = 4sin(0) f(π/2) = 4(0) f(π/2) = 0 (As you can see in the graphic)
2. If you evaluate x=π in the same function, then you have:
f(π) = 4sin(π− π/2) f(π) = 4sin(π/2) f(π) = 4 (As it is shown in the graphic)