Question

In a triangle ABC ,right angled at C , if tan A= 1 \ ( 1 \√3) , Find the value of sin A - cos B +cos A . sin B .

Answer 1

Answer:

answer=1

Step-by-step explanation:

tanA=1/(1/√3)

tanA=√3

A=60

B=30

sinA=√3/2

sinB=1/2

cosA=1/2

cosB=√3/2

(√3/2)(1/2)-(√3/2)(1/2)

=(√3/4)-(√3/4)

=1

Answer 2

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