" डर सबैलाई लाग्छ तर सफल त्यहि व्यक्ति हुन्छ जाे डरकाे बावजुद अगाडि बढ्दछ ।", "A Teacher who is attempting to teach without inspiring the pupil with a desire to learn is hammering on cold iron". -Horace Mann

Trigonometrics Ratio

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