in ∆ ABC , if

Question

in ∆ ABC , if <B=90⁰ and cot A=1 , then the value of cos C sin A- cos A sin C is
a) 0
b) 1
c) 2
d) -1 ​

in progress 0
Brielle 3 weeks 2021-10-08T06:39:37+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-10-08T06:41:16+00:00

    Answer:

    b) 1

    Step-by-step explanation:

    Given,

    in △ ABC, ∠B=90°

    This given A+C=180° −90° =90°…..(1).

    Now,

    sinA.cosC+cosA.sinC

    =sin(A+C)

    =sin(90° )

    =1

    hope this is useful for u

Leave an answer

Browse
Browse

18:9+8+9*3-7:3-1*13 = ? ( )