Answer :

Answer:

x=20°

Step-by-step explanation:

csc x=sec (x+50)

or 1/sin x=1/cos (x+50)

or sin x=cos (x+50)

cos (90-x)=cos (x+50)

90-x=x+50

90-50=x+x

2x=40

x=40/2=20

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