Question

Show that sin2theta+cos2theta=1

Answer 1

Answer:

Step-by-step explanation:

sin2theta = 1-cos2theta

1-cos2theta + cos2theta = 1

proved.

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Answer 2

Step-by-step explanation:

sin^2 theta + cos^2 theta

= (p/h)^2 + (b/h)^2

=(p^2+b^2)/h^2

= (h^2/h^2)

= 1