Question

14. Which of the following is not correct?(a) Sin(x) = -sin (-x)(b) Sec (-+) = sec (0)(c) Sin (ft + x) = sin()(d) Cos (tt-x) = -Cos(x).15. Sec (-x) =?(a) Secx(b)-Secx(c) Cos x(d) -Cns x16. (1-1)* = ?(b) 2(c) -217. Solutions of the equation: 11 - il* = 2 is(a) x= 1(b)x= 2(c)x=0(d) x = 518. Conjugate of (2+31) is(a)-5+121(b)-5-121(c) 5-121(d) 2-3119. Modulus of 3+41(a) 25(b)-25(c) 5(d) -520.12: Z2l=2(a) Z:22(b) IZ11, 1721(c) IZ(d) none of these​

Answer 1

Answer:

I don't know

Step-by-step explanation:

I don't know