Question

Class-10th ,Chapter-8 ,Exercise-8.1
Q-9 In a ∆ABC right angled at B.If tan A=1/√3,find the value of:
1) Sin A Cos C + Cos A SinC
2)Cos A Cos C - Sin A Sin C
PLZ GIVE ME ANSWER FASTLY.​

Answer 1

Step-by-step explanation:

See this attachment

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Answer 2

Answer:

Answer by

Brainlyguru01

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Brainly

Move to your question

tanA=1/√3=P/B

By pythagoras theorem we have to find the value of hypotenuse

So

H²=b²+p²

H=√b²+p²

H=√1²+√3²

H=√1+3

H=√4

H=2

Now put the value according to question

1) Sin A=P/H, Cos C=b/h

1/2×1/2+√3/2×√3/2

1/4+3/4

4/4

=1

2) √3/2×1/2-1/2×√3/2

√3/4-√3/4

=1

Here is your answer

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