Find the value of $cos 1^{0} cos 2^{0} cos 3^{0} . . . . . cos 88^{0} cos 89^{0} cos 90^{0}$

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Solution

Because $cos 90^{0} = 0$ so the product of all t-ratio s is zero Thus the value of the given expression is zero

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Similar questions

cos 1^{0} cos 2^{0} cos 3^{0} . . . . . cos 89^{0} . . . . . cos 179^{0} cos 180^{0}

cos 1^{0} cos 2^{0} cos 3^{0} . . . . cos 179^{0}

cos $1^{o}$ cos $2^{o}$ cos $3^{o}$ ..... cos $180^{o}$ = ?

(a) -1 (b) 1 (c) 0 (d) $\frac{1}{2}$

c o s 1^{0} c o s 2^{^{0}} c o s 3^{0} . . . . . . . . . c o s 180^{0} = 0

(666)^{2}

(66666)^{2}

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