Question

draw a right angeled truangle triangle ABC,such that angle ABC is 90 degree . consider angle BAC as teta, the
(a) sin teta and hence sin sqaure teta
(b) write cos teta and hence cos square teta
(c) simplify sin sqaure teta + cos square teta and write abswer
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Answer 1

Answer:

(a)BC/AC and BC square/AC square

(b)AB/AC and AB square/AC square

(c) sin square teta + cod square teta =1 .....by trigonometric identity