Question

the value of sec(270°-x) =​

Answer 1

Answer:

-cosec x.

Step-by-step explanation:

sec (270-x)

-cosec x.

Answer 2

Step-by-step explanation:

270°-x lies in 3rd quadrant

in 3rd quadrant only tan and cot are +ve.

Rest all ratios are -ve.

sec(270-x)

sec(90°×3-x)

270 is odd multiple of 9.

So sec changes to csc

270-x is in 3rd quadrant.... that means sec(270-x) is negative.

270-x is in 3rd quadrant.... that means sec(270-x) is negative.Since it's an odd multiple of 9,sec changes to csc.

sec(270-x)= -cscx