निम्नलिखित प्रत्येक समीकरणों का व्यापक हल ज्ञात कीजिए:
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Answer:
Step-by-step explanation:
प्रश्नानुसार cos4x = cos2x
या 4x = 2nπ ± 2x
धनात्मक चिन्ह लेने पर
4 x = 2nπ + 2x
या 4x - 2x = 2nπ
या 2x = 2nπ
या x = nπ , n ∈ Z
ऋणात्मक चिन्ह लेने पर
4 x = 2nπ - 2x
4x + 2x = 2nπ
6x = 2nπ
या x = 2nπ/6
= nπ/3 , n ∈ Z
अतः व्यापक हल ⇒ x = nπ तथा x = nπ/3, n ∈ Z
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