Tìm nguyên hàm của hàm số $f(x)$ $=$ $3^{2x}$

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II. Fill in each blank with one suitable word or give the correct form of the words below. 1. Can't we employ someone as a(n) ___________ to help with all this paper work? ASSIST 2. 99% of _____________ in American have at least one TV. HOUSE 3. Her hair is naturall curly but she always _________________ it. STRAIGHT 4. He got sunburn on his back because he fell _______________. SLEEP 5. ______________, there was a flash of lightning and then loud thunder. SUDDEN 6. It's very _____________ to swim there because the water is heavily polluted. SAFE 7. Underground cables carry ______________ to all parts of the city. ELECTRICAL 8. Taylor swift is my idol, she sings _________________. BEAUTY 9. It _____________ me how you can put up living in such a dirty house. AMAZEMENT 10. She's the most ______________ person in the organization. POWER III. Give the correct tense or form of the verbs in the bracket. 1. She (play)_______ tennis once or twice a week. 2. I'm afraid he isn't here. He (leave) ___________ an hour ago. 3. The moon (go) ___________ round the earth in about 27 days. 4. (Recycle) ___________ rubbish is one way to help protecting the environment. 5. My brother (tell) ____________________ jokes! They're usually rubbish, though. 6. I used (cycle) ___________ to school everyday. 7. Would you like (join) ____________ our manga club? 8. My car is very dirty. It needs (wash) _____________. 9. Each song only (cost) _____________ 50 cents at present because it is on special offer. 10. The concert (begin) ______________ at 7.30 tomorrow. EM cảm ơn ạ :333