Question

if sinA-cosA=0, show that cosecA=√2​

Answer 1

Step-by-step explanation:

➡sinA-cosA=0

➡sinA=cosA

➡sin²A=cos²A

➡sin²A=1-sin²A

➡2sin²A=1

➡sinA=1/√2

➡cosecA=√2

Answer 2

Answer:sinA=cosA

or, SinA=Sin(90-A)

or A=90-A

or, 2A=90

or, A=45

cosecA=cosec45=

Step-by-step explanation: