Question

(v) If sine - cos 0 = 0, (0° < 0 < 90°) and
sec + cosec 0 = x, then the value of x is :
(a) 1
(b) 2
(c) V2
(d) 22​

Answer 1

Step-by-step explanation:

sin thata - cos theta can be equal to zero only when theta is 90° because

sin90=1

cos90=0

Therefore sin 90-cos90. = 1-0=1

Now sec 90+ cosec90

=1