Question

1
9. In triangle ABC, right-angled at B, if tan A=
find the value of:
13
(i) sin A cos C + cos A sin C
(ii) cos A cos C - sin A sin C
or​

Answer 1

Step-by-step explanation:

(i) sinA cosC + cosA sinC

=1/2 * 1/2 + $\sqrt{3}$/2 * $\sqrt{3}$/2

=1/4 +3/4

= 4/4

=1      ANS

(ii)=$\sqrt{3}$/2 * 1/2 - 1/2 * $\sqrt{3}$/2

=$\sqrt{3}$/4 - $\sqrt{3}$/4

= 0       ANS

Answer 2

Answer:

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Step-by-step explanation:

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