If a cot A + b cosec A=p and b cot A +a cosec A =q then p2-q2 is equal to :
(A) a2-b2 (B) b2-a2 (C) a2+b2 (D) b-a
[A=theta]
Answers
Answered by
47
option B is correct
Attachments:
Answered by
25
The required option "B. " is correct.
Step-by-step explanation:
We have,
.....(1)
and .....(2)
To find, the value of
Squaring (1) and (2) and subtracting them, we get
⇒
⇒
⇒
[∵ ]
⇒
Hence, the required option "B. " is correct.
Similar questions