Math, asked by Emu69, 1 year ago

please help me solve these

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Answers

Answered by anna1115

1

Step-by-step explanation:

sin45=1/√2

cosec60=2/√3

sec30=2/√3

(1/√2)^2-(2/√3)^2+(2/√3)^2=(1/√2)^2=1/2

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