# 7.4E: Kazi nyingine za Trigonometric (Mazoezi)

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Kwa mazoezi yafuatayo, pata thamani halisi ya maneno yaliyotolewa.

39. $$\cos \frac{\pi}{6}$$

40. $$\tan \frac{\pi}{4}$$

41. $$\csc \frac{\pi}{3}$$

42. $$\sec \frac{\pi}{4}$$

Kwa mazoezi yafuatayo, tumia pembe za kumbukumbu ili kutathmini maneno yaliyotolewa.

43. $$\sec \frac{11 \pi}{3}$$

44. $$\sec 315^{\circ}$$

45. Kama ni$$\sec (t)=-2.5,$$ nini$$\sec (-t) ?$$

46. Kama ni$$\tan (t)=-0.6,$$ nini$$\tan (-t) ?$$

47. Kama$$\tan (t)=\frac{1}{3},$$ kupata$$\tan (t-\pi)$$

48. Ikiwa$$\cos (t)=\frac{\sqrt{2}}{2},$$ hupata$$\sin (t+2 \pi) .$$ Kuna ufumbuzi mbili iwezekanavyo.

49. Ni kazi gani ya trigonometric ni hata?

50. Ni kazi gani ya trigonometric isiyo ya kawaida?