Question

Is sec(π/2+x)=-cosecx​

Answer 1

sec(90+x)

sec(1*90+x)

cosec(-x)

-cosecx

Answer 2

Answer:

, secant value changes to cosec

sec(1*90+x)

sec(π/2+x)= -cosec x( here value of cosec becomes ' - ' because in the second quadrant sec is negative, u would know that if u have learnt the concept of All Silver Tea Cups)