Mathematics
Senior High
(1)(2)の両方解説お願いします。
248*(1) tan0=2のとき,
1
1+sin0
210 1+tan A
+
(2) tand=5 (0<< 1 ) のとき,
2
1
1-sin 0
1-sin0
cos e
の値を求めよ。 2000
+
cos o
1-sin 0
の値を求めよ。
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