Question

If sin X + cosec X = 2 , then sin¹⁹ X + Cosec²⁰X =

a)2¹⁹

b)2²⁰

c)2

d)2³⁹​​

Answer 1

Answer:

Your answer is option

c) 2

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Answer 2

Answer:

2 , option c is correct

Step-by-step explanation:

=> sinX + 1 / sinX = 2 => sin²X + 1 = 2sinX

=> ( sinX - 1 )² = 0 => sinX = 1

=> cosecX = 1

therefore sin¹⁹X + cosec²⁰X = 1 + 1 = 2

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