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(vii) Trigonometric identities are(a) sin20 + cos20 =(b) sec20 =(c) cosec20 = |
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Answer» sin²ϑ + cos²ϑ = 1 sec²ϑ = 1 + tan²ϑ cosec²ϑ = 1 + cot²ϑ Hope it HELPS you:) |
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