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Integration by substitution

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    Any ideas😂😂😂
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    (Original post by melodyisamarvel)
    Any ideas😂😂😂
    Can you show me your workings so far? did you manage to do the substitution correctly?
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    (Original post by DylanJ42)
    Can you show me your workings so far? did you manage to do the substitution correctly?
    Never mind done it now 😂 Basically involved trig identities we hadn't been taught yet
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