Use the reciprocal identities for the following problem If c

Use the reciprocal identities for the following problem. If cot theta = - r, with (r neq 0); find tan theta. tan theta =

Solution

we know that tan() = 1/cot()

or cot () x tan() =1

but given cot() =-r

so -r x tan() =1

thus tan() =1/r

another method tan() = 1/cot()

tan() = 1/(-r)