3. ∆ ACB लीजिए जिसर् र्ोण C सिर्ोण हैजिसिेंAB = 29 इर् ई, BC = 21 इर् ई और ∠ ABC = θ हैंिो तनम्नमलखिि र्ेि न ज्ञ ि र्ीजिए।
(i) cos2 θ + sin2 θ, (ii) cos2 θ – sin2 θ.
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Answer:
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Answered by
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Answer:
- ABC = 50
Step-by-step explanation:
Ab = 29
+
BC = 21
ABC = 50
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