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Maths Trigonometry working model video-1

Maths Trigonometry working model
"Maths Trigonometry working model" is useful video for teachers and students. This video explains Trigonometry values by using electrical current. This is a low cost working model for TLM perpose.This model explains about to find Trigonmetric values by using led lights. This is a low cost Trigonometric working model.
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