Mathematics · Trigonometry
निम्नलिखित समीकरणों पर विचार कीजिए: 1. cos4θ - sin4θ = 2 tanθ1 - tan2θ, जहाँ 0 < θ < π22. cosecθ + cotθ = 1cosecθ - cotθ, जहाँ 0 < θ < π23. cos2θ - sin2θ = 1 - tan2θ1 + tan2θ, जहाँ 0 < θ < π2 उपरोक्त समीकरणों में से कौन-सी सर्वसमिकाएँ (identities) हैं?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11, 2 और 3
- 2केवल 1 और 3
- 3केवल 2 और 3✓
- 4केवल 1 और 2
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केवल 2 और 3
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