Question

PLZ I need help!!!!!

Answer 1

The Answers are

`\csc (-45) =-√(2) \\\\\sec (-45) = √(2)\\\\\cot (-45) = -1`

Explanation:

Let we Know some Identities

cosec (-θ) = - cosec (θ)

sec (-θ) = sec (θ)

cot (-θ) = - cot (θ)

Also,

`\csc (45) =√(2) \\\\\sec (45) = √(2)\\\\\cot (45) = 1`

Therefore,

`\csc (-45) =-\csc (45)=-√(2) \\\\\sec (-45) =\sec (45) =√(2)\\\\\cot (-45) =-\cot (45)= -1`