Mathematics
Senior High

【2】と【6】わからないので途中式含めて詳しく教えてください!

次の値を求めよ。 13 8 (1) cos- π (2) tan- π 6 3 7 (4) tan- π (5) sin sin(-7) 4 らに、右の図から,次の等式が成り立 (3) cos (6)) cos(-5/37)

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