Question

SECTION C:
3)If sin theta = 20/29 Find the value of cos theta
Using trigonometric identity.
Solution:
sin^2 theta+___=1
.therefore cos^2 theta = 1 - sin^2 theta
therefore cos^2 theta =1- 400/___
therefore cos^2 theta= 841-400/___=___
therefore cos theta= 441/841=___

(please help )​

Answer 1

Answer:

therefore the : cos thetha= 21/29

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