1 Select the correct answer.
What is the period of the function y = 3 CSC X?
OA.
TT
B.
21
Ос.
2
OD.
一T
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Write the following as a base and exponent

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap