Question

anyone pls answer this with reasons...​

Answer 1

Answer:

a) false here A is not a scalar no .which can be multiplied

b) false as cos a =b/h and h(hypotenuse) can never be smaller than other side

c) false as sin a=1/cosecant a

d) false sin 60 =sin (2×30)

e) true as cos 75 = cos (45 +30)

f) false acc. to que. cosA=3/5

Answer 2

Answer:

A) false

B) false

C) false

D) false

E) true

F) false